regex: use regexec_buf()

diff --git a/builtin/diff-files.c b/builtin/diff-files.c
index 8ed2eb8813a442b64c8f43ed23acbdbd1c0dd452..15c61fd8d1ef891b013404ea5e7cbe42befac7bd 100644 (file)
--- a/builtin/diff-files.c
+++ b/builtin/diff-files.c
@@ -24,6 +24,7 @@ int cmd_diff_files(int argc, const char **argv, const char *prefix)
        gitmodules_config();
        git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
        rev.abbrev = 0;
+       precompose_argv(argc, argv);
 
        argc = setup_revisions(argc, argv, &rev, NULL);
        while (1 < argc && argv[1][0] == '-') {