worktree.c: add is_worktree_locked()

diff --git a/builtin/mktag.c b/builtin/mktag.c
index 640ab64f418208842ae3901ce37ac8918740037e..031b750f068dea5e1652129a5df6d684f6bca850 100644 (file)
--- a/builtin/mktag.c
+++ b/builtin/mktag.c
@@ -154,7 +154,7 @@ int cmd_mktag(int argc, const char **argv, const char *prefix)
        unsigned char result_sha1[20];
 
        if (argc != 1)
-               usage("git mktag < signaturefile");
+               usage("git mktag");
 
        if (strbuf_read(&buf, 0, 4096) < 0) {
                die_errno("could not read from stdin");