search: add help for patchid: prefix

Noticed-by: Kyle Meyer <kyle@kyleam.com>

diff --git a/lib/PublicInbox/Search.pm b/lib/PublicInbox/Search.pm
index 6f9fdde1bc2276cbc0620c794731f179a00750b1..b6141f684ebc61699d6fcf63fe80d2f47fbe15a8 100644 (file)
--- a/lib/PublicInbox/Search.pm
+++ b/lib/PublicInbox/Search.pm
@@ -179,6 +179,7 @@ EOF
        'dfpre:' => 'match pre-image git blob ID',
        'dfpost:' => 'match post-image git blob ID',
        'dfblob:' => 'match either pre or post-image git blob ID',
+       'patchid:' => "match `git patch-id --stable' output",
        'rt:' => <<EOF,
 match received time, like `d:' if sender's clock was correct
 EOF