git-format-patch: Make the second and subsequent mails replies to the first

[git.git] / log-tree.c

diff --git a/log-tree.c b/log-tree.c
index 9d8d46fa0038202bd49dee9cf5d1a60f781e5d7d..497198841736d11c178b0806747de5e70f20b588 100644 (file)
--- a/log-tree.c
+++ b/log-tree.c
@@ -97,6 +97,11 @@ void show_log(struct rev_info *opt, const char *sep)
                        subject = "Subject: ";
 
                printf("From %s Mon Sep 17 00:00:00 2001\n", sha1);
+               if (opt->message_id)
+                       printf("Message-Id: <%s>\n", opt->message_id);
+               if (opt->ref_message_id)
+                       printf("In-Reply-To: <%s>\nReferences: <%s>\n",
+                              opt->ref_message_id, opt->ref_message_id);
                if (opt->mime_boundary) {
                        static char subject_buffer[1024];
                        static char buffer[1024];