git: openjdk/skara: Adjust reply subjects

[duke]

Changeset: a15518e6
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2019-09-12 05:29:19 +0000
URL:       https://github.com/openjdk/skara/commit/a15518e6

Adjust reply subjects

Reviewed-by: ehelin

! bots/mlbridge/src/main/java/org/openjdk/skara/bots/mlbridge/ReviewArchive.java
! bots/mlbridge/src/test/java/org/openjdk/skara/bots/mlbridge/MailingListBridgeBotTests.java