merge-recursive: don't segfault while handling rename clashes

diff --git a/builtin-gc.c b/builtin-gc.c
index 781df601c5f95e874297e0e8bec3fddeb929cc2d..f8eae4adb41d9c338c07aa161e7305bb16742a1e 100644 (file)
--- a/builtin-gc.c
+++ b/builtin-gc.c
@@ -188,7 +188,9 @@ static int need_to_gc(void)
         * there is no need.
         */
        if (too_many_packs())
-               append_option(argv_repack, "-A", MAX_ADD);
+               append_option(argv_repack,
+                             !strcmp(prune_expire, "now") ? "-a" : "-A",
+                             MAX_ADD);
        else if (!too_many_loose_objects())
                return 0;
 
@@ -243,7 +245,9 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
                        "run \"git gc\" manually. See "
                        "\"git help gc\" for more information.\n");
        } else
-               append_option(argv_repack, "-A", MAX_ADD);
+               append_option(argv_repack,
+                             !strcmp(prune_expire, "now") ? "-a" : "-A",
+                             MAX_ADD);
 
        if (pack_refs && run_command_v_opt(argv_pack_refs, RUN_GIT_CMD))
                return error(FAILED_RUN, argv_pack_refs[0]);