1 files changed, 1 insertions, 0 deletions
diff --git a/refs.h b/refs.h
index 8d6cac717b..e588ff842f 100644
--- a/refs.h
+++ b/refs.h
@@ -98,6 +98,7 @@ extern void add_packed_ref(const char *refname, const unsigned char *sha1);
  * Write the current version of the packed refs cache from memory to
  * disk.  The packed-refs file must already be locked for writing (see
  * lock_packed_refs()).  Return zero on success.
+ * Sets errno to something meaningful on error.
  */
 extern int commit_packed_refs(void);