git: openjdk/skara: Update notifier PR matching pattern

[duke]

Changeset: 8fad696d
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2019-09-19 08:24:25 +0000
URL:       https://git.openjdk.java.net/skara/commit/8fad696d

Update notifier PR matching pattern

Reviewed-by: ehelin

! bots/mlbridge/src/main/java/org/openjdk/skara/bots/mlbridge/ArchiveMessages.java
! bots/notify/src/main/java/org/openjdk/skara/bots/notify/MailingListUpdater.java
! bots/notify/src/test/java/org/openjdk/skara/bots/notify/UpdaterTests.java