describe: when failing, tell the user about options that work

diff --git a/branch.c b/branch.c
index 62030af4b51abbfb9c488dbf018770f3b3606789..05ef3f5c9ce6e1b55a7eb483a197fe9fd6e5437d 100644 (file)
--- a/branch.c
+++ b/branch.c
@@ -172,7 +172,7 @@ void create_branch(const char *head,
 
        lock = lock_any_ref_for_update(ref.buf, NULL, 0);
        if (!lock)
-               die("Failed to lock ref for update: %s.", strerror(errno));
+               die_errno("Failed to lock ref for update");
 
        if (reflog)
                log_all_ref_updates = 1;
@@ -188,7 +188,7 @@ void create_branch(const char *head,
                setup_tracking(name, real_ref, track);
 
        if (write_ref_sha1(lock, sha1, msg) < 0)
-               die("Failed to write ref: %s.", strerror(errno));
+               die_errno("Failed to write ref");
 
        strbuf_release(&ref);
        free(real_ref);