git am: Display some help text when patch is empty

diff --git a/ll-merge.h b/ll-merge.h
index 57889227b1782d3792be2046fbb54bca67b779de..57754cc8ca7b378a86b168a4fd6299fa3dfba045 100644 (file)
--- a/ll-merge.h
+++ b/ll-merge.h
@@ -7,7 +7,7 @@
 
 int ll_merge(mmbuffer_t *result_buf,
             const char *path,
-            mmfile_t *ancestor,
+            mmfile_t *ancestor, const char *ancestor_label,
             mmfile_t *ours, const char *our_label,
             mmfile_t *theirs, const char *their_label,
             int flag);