ll-merge.c: remove implicit dependency on the_index

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

merge-blobs.c

@@ -41,7 +41,8 @@ static void *three_way_filemerge(const char *path, mmfile_t *base, mmfile_t *our
 	 * common ancestor.
 	 */
 	merge_status = ll_merge(&res, path, base, NULL,
-				our, ".our", their, ".their", NULL);
+				our, ".our", their, ".their",
+				&the_index, NULL);
 	if (merge_status < 0)
 		return NULL;