#include "builtin.h"
 
 static const char diff_files_usage[] =
-"git-diff-files [-q] [-0/-1/2/3 |-c|--cc|-n|--no-index] [<common diff options>] [<path>...]"
+"git-diff-files [-q] [-0/-1/2/3 |-c|--cc|--no-index] [<common diff options>] [<path>...]"
 COMMON_DIFF_OPTIONS_HELP;
 
 int cmd_diff_files(int argc, const char **argv, const char *prefix)
        if (!rev.diffopt.output_format)
                rev.diffopt.output_format = DIFF_FORMAT_RAW;
        result = run_diff_files_cmd(&rev, argc, argv);
-       return rev.diffopt.exit_with_status ? rev.diffopt.has_changes: result;
+       if (DIFF_OPT_TST(&rev.diffopt, EXIT_WITH_STATUS))
+               return DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES) != 0;
+       return result;
 }