commit_ref_update(): write error message to *err, not stderr

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>

Michael Haggerty committed Apr 26, 2016 at 09:09 UTC 76fc394d50efef8f1308a0f0d56087f502dac689
1 file changed +1 -1
refs/files-backend.c
+1 -1
@@ -2719,7 +2719,7 @@ static int commit_ref_update(struct ref_lock *lock,
2719 }
2720 }
2721 if (commit_ref(lock)) {
2722 - error("Couldn't set %s", lock->ref_name);
2722 + strbuf_addf(err, "Couldn't set %s", lock->ref_name);
2723 unlock_ref(lock);
2724 return -1;
2725 }