Replace deprecated dashed git commands in usage

Signed-off-by: Alexander Potashev <aspotashev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/mktag.c b/mktag.c
index 6d5083eaf..99a356e9e 100644
--- a/mktag.c
+++ b/mktag.c
@@ -158,7 +158,7 @@ int main(int argc, char **argv)
 	unsigned char result_sha1[20];
 
 	if (argc != 1)
-		usage("git-mktag < signaturefile");
+		usage("git mktag < signaturefile");
 
 	git_extract_argv0_path(argv[0]);