subtree: adjust function definitions to match CodingGuidelines

We prefer a space between the function name and the parentheses, and no
space inside the parentheses.

The opening "{" should also be on the same line.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/contrib/subtree/git-subtree.sh b/contrib/subtree/git-subtree.sh
index de49eb0..dec085a 100755
--- a/contrib/subtree/git-subtree.sh
+++ b/contrib/subtree/git-subtree.sh
@@ -49,32 +49,28 @@
 message=
 prefix=
 
-debug()
-{
+debug () {
 	if test -n "$debug"
 	then
 		printf "%s\n" "$*" >&2
 	fi
 }
 
-say()
-{
+say () {
 	if test -z "$quiet"
 	then
 		printf "%s\n" "$*" >&2
 	fi
 }
 
-progress()
-{
+progress () {
 	if test -z "$quiet"
 	then
 		printf "%s\r" "$*" >&2
 	fi
 }
 
-assert()
-{
+assert () {
 	if ! "$@"
 	then
 		die "assertion failed: " "$@"
@@ -202,8 +198,7 @@
 debug "opts: {$*}"
 debug
 
-cache_setup()
-{
+cache_setup () {
 	cachedir="$GIT_DIR/subtree-cache/$$"
 	rm -rf "$cachedir" ||
 		die "Can't delete old cachedir: $cachedir"
@@ -214,8 +209,7 @@
 	debug "Using cachedir: $cachedir" >&2
 }
 
-cache_get()
-{
+cache_get () {
 	for oldrev in "$@"
 	do
 		if test -r "$cachedir/$oldrev"
@@ -226,8 +220,7 @@
 	done
 }
 
-cache_miss()
-{
+cache_miss () {
 	for oldrev in "$@"
 	do
 		if ! test -r "$cachedir/$oldrev"
@@ -237,8 +230,7 @@
 	done
 }
 
-check_parents()
-{
+check_parents () {
 	missed=$(cache_miss "$@")
 	for miss in $missed
 	do
@@ -249,13 +241,11 @@
 	done
 }
 
-set_notree()
-{
+set_notree () {
 	echo "1" > "$cachedir/notree/$1"
 }
 
-cache_set()
-{
+cache_set () {
 	oldrev="$1"
 	newrev="$2"
 	if test "$oldrev" != "latest_old" &&
@@ -267,8 +257,7 @@
 	echo "$newrev" >"$cachedir/$oldrev"
 }
 
-rev_exists()
-{
+rev_exists () {
 	if git rev-parse "$1" >/dev/null 2>&1
 	then
 		return 0
@@ -277,8 +266,7 @@
 	fi
 }
 
-rev_is_descendant_of_branch()
-{
+rev_is_descendant_of_branch () {
 	newrev="$1"
 	branch="$2"
 	branch_hash=$(git rev-parse "$branch")
@@ -295,16 +283,14 @@
 # if a commit doesn't have a parent, this might not work.  But we only want
 # to remove the parent from the rev-list, and since it doesn't exist, it won't
 # be there anyway, so do nothing in that case.
-try_remove_previous()
-{
+try_remove_previous () {
 	if rev_exists "$1^"
 	then
 		echo "^$1^"
 	fi
 }
 
-find_latest_squash()
-{
+find_latest_squash () {
 	debug "Looking for latest squash ($dir)..."
 	dir="$1"
 	sq=
@@ -348,8 +334,7 @@
 	done
 }
 
-find_existing_splits()
-{
+find_existing_splits () {
 	debug "Looking for prior splits..."
 	dir="$1"
 	revs="$2"
@@ -393,8 +378,7 @@
 	done
 }
 
-copy_commit()
-{
+copy_commit () {
 	# We're going to set some environment vars here, so
 	# do it in a subshell to get rid of them safely later
 	debug copy_commit "{$1}" "{$2}" "{$3}"
@@ -420,8 +404,7 @@
 	) || die "Can't copy commit $1"
 }
 
-add_msg()
-{
+add_msg () {
 	dir="$1"
 	latest_old="$2"
 	latest_new="$3"
@@ -440,8 +423,7 @@
 	EOF
 }
 
-add_squashed_msg()
-{
+add_squashed_msg () {
 	if test -n "$message"
 	then
 		echo "$message"
@@ -450,8 +432,7 @@
 	fi
 }
 
-rejoin_msg()
-{
+rejoin_msg () {
 	dir="$1"
 	latest_old="$2"
 	latest_new="$3"
@@ -470,8 +451,7 @@
 	EOF
 }
 
-squash_msg()
-{
+squash_msg () {
 	dir="$1"
 	oldsub="$2"
 	newsub="$3"
@@ -493,14 +473,12 @@
 	echo "git-subtree-split: $newsub"
 }
 
-toptree_for_commit()
-{
+toptree_for_commit () {
 	commit="$1"
 	git log -1 --pretty=format:'%T' "$commit" -- || exit $?
 }
 
-subtree_for_commit()
-{
+subtree_for_commit () {
 	commit="$1"
 	dir="$2"
 	git ls-tree "$commit" -- "$dir" |
@@ -514,8 +492,7 @@
 	done
 }
 
-tree_changed()
-{
+tree_changed () {
 	tree=$1
 	shift
 	if test $# -ne 1
@@ -532,8 +509,7 @@
 	fi
 }
 
-new_squash_commit()
-{
+new_squash_commit () {
 	old="$1"
 	oldsub="$2"
 	newsub="$3"
@@ -548,8 +524,7 @@
 	fi
 }
 
-copy_or_skip()
-{
+copy_or_skip () {
 	rev="$1"
 	tree="$2"
 	newparents="$3"
@@ -607,8 +582,7 @@
 	fi
 }
 
-ensure_clean()
-{
+ensure_clean () {
 	if ! git diff-index HEAD --exit-code --quiet 2>&1
 	then
 		die "Working tree has modifications.  Cannot add."
@@ -619,14 +593,12 @@
 	fi
 }
 
-ensure_valid_ref_format()
-{
+ensure_valid_ref_format () {
 	git check-ref-format "refs/heads/$1" ||
 		die "'$1' does not look like a ref"
 }
 
-cmd_add()
-{
+cmd_add () {
 	if test -e "$dir"
 	then
 		die "'$dir' already exists.  Cannot add."
@@ -657,8 +629,7 @@
 	fi
 }
 
-cmd_add_repository()
-{
+cmd_add_repository () {
 	echo "git fetch" "$@"
 	repository=$1
 	refspec=$2
@@ -668,8 +639,7 @@
 	cmd_add_commit "$@"
 }
 
-cmd_add_commit()
-{
+cmd_add_commit () {
 	revs=$(git rev-parse $default --revs-only "$@") || exit $?
 	set -- $revs
 	rev="$1"
@@ -702,8 +672,7 @@
 	say "Added dir '$dir'"
 }
 
-cmd_split()
-{
+cmd_split () {
 	debug "Splitting $dir..."
 	cache_setup || exit $?
 
@@ -810,8 +779,7 @@
 	exit 0
 }
 
-cmd_merge()
-{
+cmd_merge () {
 	revs=$(git rev-parse $default --revs-only "$@") || exit $?
 	ensure_clean
 
@@ -862,8 +830,7 @@
 	fi
 }
 
-cmd_pull()
-{
+cmd_pull () {
 	if test $# -ne 2
 	then
 		die "You must provide <repository> <ref>"
@@ -876,8 +843,7 @@
 	cmd_merge "$@"
 }
 
-cmd_push()
-{
+cmd_push () {
 	if test $# -ne 2
 	then
 		die "You must provide <repository> <ref>"