git-tag: update usage string and documentation.

Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/git-tag.sh b/git-tag.sh
index 76c1bcd8c9..400bdb9843 100755
--- a/git-tag.sh
+++ b/git-tag.sh
@@ -4,7 +4,7 @@
 . git-sh-setup || die "Not a git archive"
 
 usage () {
-    echo >&2 "Usage: git-tag [-a | -s] [-f] [-m "tag message"] tagname"
+    echo >&2 "Usage: git-tag [-a | -s] [-f] [-m "tag message"] tagname [head]"
     exit 1
 }