post-commit Added List-ID: header for easier filtering.

BitKeeper/triggers/post-commit:
  Added List-ID: header for easier filtering.
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted

BitKeeper/etc/logging_ok

-heikki@donna.mysql.fi
+mwagner@evoq.mwagner.org

BitKeeper/triggers/post-commit

@@ -11,6 +11,7 @@ then
  echo "Commit successful, notifying developers at $TO"
  (
    cat <<EOF
+List-ID: <bk.mysql>
 From: $FROM
 To: $TO
 Subject: bk commit