contrib: add 'git difftool' for launching common merge tools

diff --git a/builtin-revert.c b/builtin-revert.c
index 7483a7a63bf09a7a123e442e9b933b9d24f2b1a6..d48313c7453c24e7ab4cbb3e024d05ec311edf7b 100644 (file)
--- a/builtin-revert.c
+++ b/builtin-revert.c
@@ -251,7 +251,7 @@ static int revert_or_cherry_pick(int argc, const char **argv)
        int i, index_fd, clean;
        char *oneline, *reencoded_message = NULL;
        const char *message, *encoding;
-       char *defmsg = xstrdup(git_path("MERGE_MSG"));
+       char *defmsg = git_pathdup("MERGE_MSG");
        struct merge_options o;
        struct tree *result, *next_tree, *base_tree, *head_tree;
        static struct lock_file index_lock;
@@ -352,6 +352,11 @@ static int revert_or_cherry_pick(int argc, const char **argv)
                add_to_msg(oneline_body + 1);
                add_to_msg("\"\n\nThis reverts commit ");
                add_to_msg(sha1_to_hex(commit->object.sha1));
+
+               if (commit->parents->next) {
+                       add_to_msg(", reversing\nchanges made to ");
+                       add_to_msg(sha1_to_hex(parent->object.sha1));
+               }
                add_to_msg(".\n");
        } else {
                base = parent;