tests: enclose $PERL_PATH in double quotes

Otherwise it will be split at a space after "Program" when it is set
to "\\Program Files\perl" or something silly like that.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t1010-mktree.sh b/t/t1010-mktree.sh
index 3535761..df573c4 100755
--- a/t/t1010-mktree.sh
+++ b/t/t1010-mktree.sh
@@ -42,13 +42,13 @@
 '
 
 test_expect_success 'ls-tree output in wrong order given to mktree (1)' '
-	$PERL_PATH -e "print reverse <>" <top |
+	"$PERL_PATH" -e "print reverse <>" <top |
 	git mktree >actual &&
 	test_cmp tree actual
 '
 
 test_expect_success 'ls-tree output in wrong order given to mktree (2)' '
-	$PERL_PATH -e "print reverse <>" <top.withsub |
+	"$PERL_PATH" -e "print reverse <>" <top.withsub |
 	git mktree >actual &&
 	test_cmp tree.withsub actual
 '
diff --git a/t/t3300-funny-names.sh b/t/t3300-funny-names.sh
index f42adc4..1f35e55 100755
--- a/t/t3300-funny-names.sh
+++ b/t/t3300-funny-names.sh
@@ -71,7 +71,7 @@
 	tabs	," (dq) and spaces
 	EOF
 	git ls-files -z >ls-files.z &&
-	$PERL_PATH -pe "y/\000/\012/" <ls-files.z >current &&
+	"$PERL_PATH" -pe "y/\000/\012/" <ls-files.z >current &&
 	test_cmp expected current
 '
 
@@ -108,7 +108,7 @@
 	tabs	," (dq) and spaces
 	EOF
 	git diff-index -z --name-status $t0 >diff-index.z &&
-	$PERL_PATH -pe "y/\000/\012/" <diff-index.z >current &&
+	"$PERL_PATH" -pe "y/\000/\012/" <diff-index.z >current &&
 	test_cmp expected current
 '
 
@@ -118,7 +118,7 @@
 	tabs	," (dq) and spaces
 	EOF
 	git diff-tree -z --name-status $t0 $t1 >diff-tree.z &&
-	$PERL_PATH -pe y/\\000/\\012/ <diff-tree.z >current &&
+	"$PERL_PATH" -pe y/\\000/\\012/ <diff-tree.z >current &&
 	test_cmp expected current
 '
 
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 4c22c17..959aa26 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -243,7 +243,7 @@
 	(git format-patch --stdout "$@"; echo $? > status.out) |
 	# Prints everything between the Message-ID and In-Reply-To,
 	# and replaces all Message-ID-lookalikes by a sequence number
-	$PERL_PATH -ne '
+	"$PERL_PATH" -ne '
 		if (/^(message-id|references|in-reply-to)/i) {
 			$printing = 1;
 		} elsif (/^\S/) {
diff --git a/t/t4020-diff-external.sh b/t/t4020-diff-external.sh
index 3d9307b..533afc1 100755
--- a/t/t4020-diff-external.sh
+++ b/t/t4020-diff-external.sh
@@ -118,7 +118,7 @@
 	git diff | grep Binary
 '
 
-echo NULZbetweenZwords | $PERL_PATH -pe 'y/Z/\000/' > file
+echo NULZbetweenZwords | "$PERL_PATH" -pe 'y/Z/\000/' > file
 
 test_expect_success 'force diff with "diff"' '
 	echo >.gitattributes "file diff" &&
diff --git a/t/t4029-diff-trailing-space.sh b/t/t4029-diff-trailing-space.sh
index 7f7f504..36e2f07 100755
--- a/t/t4029-diff-trailing-space.sh
+++ b/t/t4029-diff-trailing-space.sh
@@ -27,7 +27,7 @@
      git config --bool diff.suppressBlankEmpty true &&
      git diff f > actual &&
      test_cmp exp actual &&
-     $PERL_PATH -i.bak -p -e "s/^\$/ /" exp &&
+     "$PERL_PATH" -i.bak -p -e "s/^\$/ /" exp &&
      git config --bool diff.suppressBlankEmpty false &&
      git diff f > actual &&
      test_cmp exp actual &&
diff --git a/t/t4030-diff-textconv.sh b/t/t4030-diff-textconv.sh
index 82e36ec..eebb1ee 100755
--- a/t/t4030-diff-textconv.sh
+++ b/t/t4030-diff-textconv.sh
@@ -21,7 +21,7 @@
 
 cat >hexdump <<'EOF'
 #!/bin/sh
-$PERL_PATH -e '$/ = undef; $_ = <>; s/./ord($&)/ge; print $_' < "$1"
+"$PERL_PATH" -e '$/ = undef; $_ = <>; s/./ord($&)/ge; print $_' < "$1"
 EOF
 chmod +x hexdump
 
diff --git a/t/t4031-diff-rewrite-binary.sh b/t/t4031-diff-rewrite-binary.sh
index e8ee06e..eacc669 100755
--- a/t/t4031-diff-rewrite-binary.sh
+++ b/t/t4031-diff-rewrite-binary.sh
@@ -60,7 +60,7 @@
 {
 	echo "#!$SHELL_PATH"
 	cat <<'EOF'
-$PERL_PATH -e '$/ = undef; $_ = <>; s/./ord($&)/ge; print $_' < "$1"
+"$PERL_PATH" -e '$/ = undef; $_ = <>; s/./ord($&)/ge; print $_' < "$1"
 EOF
 } >dump
 chmod +x dump
diff --git a/t/t4103-apply-binary.sh b/t/t4103-apply-binary.sh
index 5b533cf..99627bc 100755
--- a/t/t4103-apply-binary.sh
+++ b/t/t4103-apply-binary.sh
@@ -25,10 +25,10 @@
 	git commit -m 'Initial Version' 2>/dev/null &&
 
 	git checkout -b binary &&
-	$PERL_PATH -pe 'y/x/\000/' <file1 >file3 &&
+	"$PERL_PATH" -pe 'y/x/\000/' <file1 >file3 &&
 	cat file3 >file4 &&
 	git add file2 &&
-	$PERL_PATH -pe 'y/\000/v/' <file3 >file1 &&
+	"$PERL_PATH" -pe 'y/\000/v/' <file3 >file1 &&
 	rm -f file2 &&
 	git update-index --add --remove file1 file2 file3 file4 &&
 	git commit -m 'Second Version' &&
diff --git a/t/t4116-apply-reverse.sh b/t/t4116-apply-reverse.sh
index 7b0c02a..fca8153 100755
--- a/t/t4116-apply-reverse.sh
+++ b/t/t4116-apply-reverse.sh
@@ -12,14 +12,14 @@
 test_expect_success setup '
 
 	for i in a b c d e f g h i j k l m n; do echo $i; done >file1 &&
-	$PERL_PATH -pe "y/ijk/\\000\\001\\002/" <file1 >file2 &&
+	"$PERL_PATH" -pe "y/ijk/\\000\\001\\002/" <file1 >file2 &&
 
 	git add file1 file2 &&
 	git commit -m initial &&
 	git tag initial &&
 
 	for i in a b c g h i J K L m o n p q; do echo $i; done >file1 &&
-	$PERL_PATH -pe "y/mon/\\000\\001\\002/" <file1 >file2 &&
+	"$PERL_PATH" -pe "y/mon/\\000\\001\\002/" <file1 >file2 &&
 
 	git commit -a -m second &&
 	git tag second &&
diff --git a/t/t4200-rerere.sh b/t/t4200-rerere.sh
index ec7622c..3ab670d 100755
--- a/t/t4200-rerere.sh
+++ b/t/t4200-rerere.sh
@@ -78,7 +78,7 @@
 	test_might_fail git config --unset rerere.enabled &&
 	test_must_fail git merge first &&
 
-	sha1=$($PERL_PATH -pe "s/	.*//" .git/MERGE_RR) &&
+	sha1=$("$PERL_PATH" -pe "s/	.*//" .git/MERGE_RR) &&
 	rr=.git/rr-cache/$sha1 &&
 	grep "^=======\$" $rr/preimage &&
 	! test -f $rr/postimage &&
@@ -91,7 +91,7 @@
 	git reset --hard &&
 	test_must_fail git merge first &&
 
-	sha1=$($PERL_PATH -pe "s/	.*//" .git/MERGE_RR) &&
+	sha1=$("$PERL_PATH" -pe "s/	.*//" .git/MERGE_RR) &&
 	rr=.git/rr-cache/$sha1 &&
 	grep ^=======$ $rr/preimage
 '
@@ -101,7 +101,7 @@
 	git config rerere.enabled true &&
 	git reset --hard &&
 	test_must_fail git merge first &&
-	sha1=$($PERL_PATH -pe "s/	.*//" .git/MERGE_RR) &&
+	sha1=$("$PERL_PATH" -pe "s/	.*//" .git/MERGE_RR) &&
 	rr=.git/rr-cache/$sha1
 '
 
@@ -185,7 +185,7 @@
 
 test_expect_success 'rerere clear' '
 	rm $rr/postimage &&
-	echo "$sha1	a1" | $PERL_PATH -pe "y/\012/\000/" >.git/MERGE_RR &&
+	echo "$sha1	a1" | "$PERL_PATH" -pe "y/\012/\000/" >.git/MERGE_RR &&
 	git rerere clear &&
 	! test -d $rr
 '
diff --git a/t/t5300-pack-object.sh b/t/t5300-pack-object.sh
index a97bb74..4fd69a1 100755
--- a/t/t5300-pack-object.sh
+++ b/t/t5300-pack-object.sh
@@ -13,9 +13,9 @@
 test_expect_success \
     'setup' \
     'rm -f .git/index* &&
-     $PERL_PATH -e "print \"a\" x 4096;" > a &&
-     $PERL_PATH -e "print \"b\" x 4096;" > b &&
-     $PERL_PATH -e "print \"c\" x 4096;" > c &&
+     "$PERL_PATH" -e "print \"a\" x 4096;" > a &&
+     "$PERL_PATH" -e "print \"b\" x 4096;" > b &&
+     "$PERL_PATH" -e "print \"c\" x 4096;" > c &&
      test-genrandom "seed a" 2097152 > a_big &&
      test-genrandom "seed b" 2097152 > b_big &&
      git update-index --add a a_big b b_big c &&
@@ -129,7 +129,7 @@
 cd "$TRASH"
 
 test_expect_success 'compare delta flavors' '
-	$PERL_PATH -e '\''
+	"$PERL_PATH" -e '\''
 		defined($_ = -s $_) or die for @ARGV;
 		exit 1 if $ARGV[0] <= $ARGV[1];
 	'\'' test-2-$packname_2.pack test-3-$packname_3.pack
diff --git a/t/t5303-pack-corruption-resilience.sh b/t/t5303-pack-corruption-resilience.sh
index ee4e1af..5b1250f 100755
--- a/t/t5303-pack-corruption-resilience.sh
+++ b/t/t5303-pack-corruption-resilience.sh
@@ -98,7 +98,7 @@
     'create_new_pack &&
      git prune-packed &&
      chmod +w ${pack}.pack &&
-     $PERL_PATH -i.bak -pe "s/ base /abcdef/" ${pack}.pack &&
+     "$PERL_PATH" -i.bak -pe "s/ base /abcdef/" ${pack}.pack &&
      test_must_fail git cat-file blob $blob_1 > /dev/null &&
      test_must_fail git cat-file blob $blob_2 > /dev/null &&
      test_must_fail git cat-file blob $blob_3 > /dev/null'
@@ -155,7 +155,7 @@
     'create_new_pack &&
      git prune-packed &&
      chmod +w ${pack}.pack &&
-     $PERL_PATH -i.bak -pe "s/ delta1 /abcdefgh/" ${pack}.pack &&
+     "$PERL_PATH" -i.bak -pe "s/ delta1 /abcdefgh/" ${pack}.pack &&
      git cat-file blob $blob_1 > /dev/null &&
      test_must_fail git cat-file blob $blob_2 > /dev/null &&
      test_must_fail git cat-file blob $blob_3 > /dev/null'
diff --git a/t/t5532-fetch-proxy.sh b/t/t5532-fetch-proxy.sh
index 6ef4378..5531bd1 100755
--- a/t/t5532-fetch-proxy.sh
+++ b/t/t5532-fetch-proxy.sh
@@ -15,7 +15,7 @@
 cat >proxy <<'EOF'
 #!/bin/sh
 echo >&2 "proxying for $*"
-cmd=`$PERL_PATH -e '
+cmd=`"$PERL_PATH" -e '
 	read(STDIN, $buf, 4);
 	my $n = hex($buf) - 4;
 	read(STDIN, $buf, $n);
diff --git a/t/t5551-http-fetch.sh b/t/t5551-http-fetch.sh
index 0667a3b..fadf2f2 100755
--- a/t/t5551-http-fetch.sh
+++ b/t/t5551-http-fetch.sh
@@ -130,7 +130,7 @@
 	done | git fast-import --export-marks=marks &&
 
 	# now assign tags to all the dangling commits we created above
-	tag=$($PERL_PATH -e "print \"bla\" x 30") &&
+	tag=$("$PERL_PATH" -e "print \"bla\" x 30") &&
 	sed -e "s/^:\(.\+\) \(.\+\)$/\2 refs\/tags\/$tag-\1/" <marks >>packed-refs
 	)
 '
diff --git a/t/t6011-rev-list-with-bad-commit.sh b/t/t6011-rev-list-with-bad-commit.sh
index b2c6125..bbb0581 100755
--- a/t/t6011-rev-list-with-bad-commit.sh
+++ b/t/t6011-rev-list-with-bad-commit.sh
@@ -37,7 +37,7 @@
 
 test_expect_success 'corrupt second commit object' \
    '
-   $PERL_PATH -i.bak -pe "s/second commit/socond commit/" .git/objects/pack/*.pack &&
+   "$PERL_PATH" -i.bak -pe "s/second commit/socond commit/" .git/objects/pack/*.pack &&
    test_must_fail git fsck --full
    '
 
diff --git a/t/t6013-rev-list-reverse-parents.sh b/t/t6013-rev-list-reverse-parents.sh
index 3178c14..892a537 100755
--- a/t/t6013-rev-list-reverse-parents.sh
+++ b/t/t6013-rev-list-reverse-parents.sh
@@ -25,7 +25,7 @@
 
 test_expect_success '--reverse --parents --full-history combines correctly' '
 	git rev-list --parents --full-history master -- foo |
-		$PERL_PATH -e "print reverse <>" > expected &&
+		"$PERL_PATH" -e "print reverse <>" > expected &&
 	git rev-list --reverse --parents --full-history master -- foo \
 		> actual &&
 	test_cmp actual expected
@@ -33,7 +33,7 @@
 
 test_expect_success '--boundary does too' '
 	git rev-list --boundary --parents --full-history master ^root -- foo |
-		$PERL_PATH -e "print reverse <>" > expected &&
+		"$PERL_PATH" -e "print reverse <>" > expected &&
 	git rev-list --boundary --reverse --parents --full-history \
 		master ^root -- foo > actual &&
 	test_cmp actual expected
diff --git a/t/t7508-status.sh b/t/t7508-status.sh
index 5e9160f..c206f47 100755
--- a/t/t7508-status.sh
+++ b/t/t7508-status.sh
@@ -941,7 +941,7 @@
 
 test_expect_success 'status -z implies porcelain' '
 	git status --porcelain |
-	$PERL_PATH -pe "s/\012/\000/g" >expect &&
+	"$PERL_PATH" -pe "s/\012/\000/g" >expect &&
 	git status -z >output &&
 	test_cmp expect output
 '
diff --git a/t/t8006-blame-textconv.sh b/t/t8006-blame-textconv.sh
index 06b8f86..bf6caa4 100755
--- a/t/t8006-blame-textconv.sh
+++ b/t/t8006-blame-textconv.sh
@@ -10,7 +10,7 @@
 cat >helper <<'EOF'
 #!/bin/sh
 grep -q '^bin: ' "$1" || { echo "E: $1 is not \"binary\" file" 1>&2; exit 1; }
-$PERL_PATH -p -e 's/^bin: /converted: /' "$1"
+"$PERL_PATH" -p -e 's/^bin: /converted: /' "$1"
 EOF
 chmod +x helper
 
diff --git a/t/t9129-git-svn-i18n-commitencoding.sh b/t/t9129-git-svn-i18n-commitencoding.sh
index c9c8d02..9a40f1e 100755
--- a/t/t9129-git-svn-i18n-commitencoding.sh
+++ b/t/t9129-git-svn-i18n-commitencoding.sh
@@ -29,7 +29,7 @@
 compare_svn_head_with () {
 	# extract just the log message and strip out committer info.
 	# don't use --limit here since svn 1.1.x doesn't have it,
-	LC_ALL="$a_utf8_locale" svn log `git svn info --url` | $PERL_PATH -w -e '
+	LC_ALL="$a_utf8_locale" svn log `git svn info --url` | "$PERL_PATH" -w -e '
 		use bytes;
 		$/ = ("-"x72) . "\n";
 		my @x = <STDIN>;
diff --git a/t/t9137-git-svn-dcommit-clobber-series.sh b/t/t9137-git-svn-dcommit-clobber-series.sh
index 726875a..c17aa31 100755
--- a/t/t9137-git-svn-dcommit-clobber-series.sh
+++ b/t/t9137-git-svn-dcommit-clobber-series.sh
@@ -20,8 +20,8 @@
 	test x"`sed -n -e 61p < file`" = x61 &&
 	svn_cmd co "$svnrepo" tmp &&
 	(cd tmp &&
-		$PERL_PATH -i.bak -p -e "s/^58$/5588/" file &&
-		$PERL_PATH -i.bak -p -e "s/^61$/6611/" file &&
+		"$PERL_PATH" -i.bak -p -e "s/^58$/5588/" file &&
+		"$PERL_PATH" -i.bak -p -e "s/^61$/6611/" file &&
 		poke file &&
 		test x"`sed -n -e 58p < file`" = x5588 &&
 		test x"`sed -n -e 61p < file`" = x6611 &&
@@ -40,8 +40,8 @@
 test_expect_success 'change file but in unrelated area' "
 	test x\"\`sed -n -e 4p < file\`\" = x4 &&
 	test x\"\`sed -n -e 7p < file\`\" = x7 &&
-	$PERL_PATH -i.bak -p -e 's/^4\$/4444/' file &&
-	$PERL_PATH -i.bak -p -e 's/^7\$/7777/' file &&
+	"$PERL_PATH" -i.bak -p -e 's/^4\$/4444/' file &&
+	"$PERL_PATH" -i.bak -p -e 's/^7\$/7777/' file &&
 	test x\"\`sed -n -e 4p < file\`\" = x4444 &&
 	test x\"\`sed -n -e 7p < file\`\" = x7777 &&
 	git commit -m '4 => 4444, 7 => 7777' file &&
diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh
index 007e5af..11f977b 100755
--- a/t/t9300-fast-import.sh
+++ b/t/t9300-fast-import.sh
@@ -12,7 +12,7 @@
 # This could be written as "head -c $1", but IRIX "head" does not
 # support the -c option.
 head_c () {
-	$PERL_PATH -e '
+	"$PERL_PATH" -e '
 		my $len = $ARGV[1];
 		while ($len > 0) {
 			my $s;
diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh
index 6b6dc20..77447b7 100755
--- a/t/t9350-fast-export.sh
+++ b/t/t9350-fast-export.sh
@@ -424,7 +424,7 @@
 		--cacheinfo 100644 $blob "path with \\backslash" \
 		--cacheinfo 100644 $blob "path with space" &&
 	 git commit -m addition &&
-	 git ls-files -z -s | $PERL_PATH -0pe "s{\\t}{$&subdir/}" >index &&
+	 git ls-files -z -s | "$PERL_PATH" -0pe "s{\\t}{$&subdir/}" >index &&
 	 git read-tree --empty &&
 	 git update-index -z --index-info <index &&
 	 git commit -m rename &&
diff --git a/t/t9810-git-p4-rcs.sh b/t/t9810-git-p4-rcs.sh
index ce38c10..b00ad09 100755
--- a/t/t9810-git-p4-rcs.sh
+++ b/t/t9810-git-p4-rcs.sh
@@ -246,7 +246,7 @@
 		git config git-p4.attemptRCSCleanup true &&
 		(cd ../cli && p4_append_to_file kwfile1.c) &&
 		old_lines=$(wc -l <kwfile1.c) &&
-		$PERL_PATH -n -i -e "print unless m/Revision:/" kwfile1.c &&
+		"$PERL_PATH" -n -i -e "print unless m/Revision:/" kwfile1.c &&
 		new_lines=$(wc -l <kwfile1.c) &&
 		test $new_lines = $(($old_lines - 1)) &&
 
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index fc0c080..1639769 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -76,11 +76,11 @@
 }
 
 nul_to_q () {
-	$PERL_PATH -pe 'y/\000/Q/'
+	"$PERL_PATH" -pe 'y/\000/Q/'
 }
 
 q_to_nul () {
-	$PERL_PATH -pe 'y/Q/\000/'
+	"$PERL_PATH" -pe 'y/Q/\000/'
 }
 
 q_to_cr () {