convert refresh_index to take struct pathspec

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/commit.c b/builtin/commit.c
index eaecf7c..d34baab 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1244,7 +1244,7 @@
 		       prefix, argv);
 
 	read_cache_preload(&s.pathspec);
-	refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, s.pathspec.raw, NULL, NULL);
+	refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, &s.pathspec, NULL, NULL);
 
 	fd = hold_locked_index(&index_lock, 0);
 	if (0 <= fd)