files-backend: don't rewrite the `packed-refs` file unnecessarily

diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index c753e9237a8d5981a17e872db33d5326bd8d7eab..82ad6e0c813375b480129c22035afc4d6674992a 100644 (file)
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -25,6 +25,7 @@
 #include "sha1-array.h"
 #include "argv-array.h"
 #include "mru.h"
+#include "packfile.h"
 
 static const char *pack_usage[] = {
        N_("git pack-objects --stdout [<options>...] [< <ref-list> | < <object-list>]"),