regex: use regexec_buf()

diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c
index 2a12b81e065bfb75f05baf6694e1a9d53129bc40..806dd7a885e9e7b87e19ca8acd2b6d0383b41d85 100644 (file)
--- a/builtin/diff-tree.c
+++ b/builtin/diff-tree.c
@@ -114,6 +114,8 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
        opt->disable_stdin = 1;
        memset(&s_r_opt, 0, sizeof(s_r_opt));
        s_r_opt.tweak = diff_tree_tweak_rev;
+
+       precompose_argv(argc, argv);
        argc = setup_revisions(argc, argv, opt, &s_r_opt);
 
        while (--argc > 0) {