argc = setup_revisions(argc, argv, &rev, NULL);
rev.diffopt.output_format = DIFF_FORMAT_PATCH;
+ DIFF_OPT_SET(&rev.diffopt, IGNORE_DIRTY_SUBMODULES);
out = open(file, O_CREAT | O_WRONLY, 0644);
if (out < 0)
die (_("Could not open '%s' for writing."), file);