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

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

diff --git a/refs/files-backend.c b/refs/files-backend.c
index 0cc116d..2d3a8c6 100644 (file)
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -2719,7 +2719,7 @@ static int commit_ref_update(struct ref_lock *lock,
                }
        }
        if (commit_ref(lock)) {
-               error("Couldn't set %s", lock->ref_name);
+               strbuf_addf(err, "Couldn't set %s", lock->ref_name);
                unlock_ref(lock);
                return -1;
        }