tests: use "git xyzzy" form (t0000 - t3599)

Converts tests between t0050-t3903.

Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t3800-mktag.sh b/t/t3800-mktag.sh
index c851db8..6fb027b 100755
--- a/t/t3800-mktag.sh
+++ b/t/t3800-mktag.sh
@@ -2,7 +2,7 @@
 #
 #
 
-test_description='git-mktag: tag object verify test'
+test_description='git mktag: tag object verify test'
 
 . ./test-lib.sh
 
@@ -14,7 +14,7 @@
 check_verify_failure () {
 	expect="$2"
 	test_expect_success "$1" '
-		( test_must_fail git-mktag <tag.sig 2>message ) &&
+		( test_must_fail git mktag <tag.sig 2>message ) &&
 		grep "$expect" message
 	'
 }
@@ -24,7 +24,7 @@
 # for the tag.
 echo Hello >A
 git update-index --add A
-git-commit -m "Initial commit"
+git commit -m "Initial commit"
 head=$(git rev-parse --verify HEAD)
 
 ############################################################
@@ -222,7 +222,7 @@
 
 test_expect_success \
     'allow empty tag email' \
-    'git-mktag <tag.sig >.git/refs/tags/mytag 2>message'
+    'git mktag <tag.sig >.git/refs/tags/mytag 2>message'
 
 ############################################################
 # 16. disallow spaces in tag email
@@ -350,14 +350,14 @@
 
 test_expect_success \
     'create valid tag' \
-    'git-mktag <tag.sig >.git/refs/tags/mytag 2>message'
+    'git mktag <tag.sig >.git/refs/tags/mytag 2>message'
 
 ############################################################
 # 25. check mytag
 
 test_expect_success \
     'check mytag' \
-    'git-tag -l | grep mytag'
+    'git tag -l | grep mytag'
 
 
 test_done