use the compact-summary format, intead of diffstat, when showing
the summary of the incoming changes.
+ * "git imap-send" has been broken for a long time, which has been
+ resurrected and then taught to talk OAuth2.0 etc.
+
+ * Some error messages from "git imap-send" has been updated.
+
Performance, Internal Implementation, Development Support etc.
--------------------------------------------------------------
* A test helper "test_seq" function learned the "-f <fmt>" option,
which allowed us to simplify a lot of test scripts.
+ * A lot of stale stuff has been removed from the contrib/ hierarchy.
+
Fixes since v2.50
-----------------