for-each-ref: use skip_prefix() to avoid duplicate string comparison

diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index b59f5d895e38bdb96d19b5fc5061669facdf22cc..3eb86e0693b3f9adb6680645151f842dffa7a4f9 100644 (file)
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -812,6 +812,7 @@ static void write_pack_file(void)
                        fixup_pack_header_footer(fd, sha1, pack_tmp_name,
                                                 nr_written, sha1, offset);
                        close(fd);
+                       write_bitmap_index = 0;
                }
 
                if (!pack_to_stdout) {