[Integrated] RFR: Properly set commit icon

[Robin Westberg]

Changeset: 1620db8d
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2019-12-11 10:53:14 +0000
URL:       https://git.openjdk.java.net/skara/commit/1620db8d

Properly set commit icon

Reviewed-by: ehelin

! bots/notify/src/main/java/org/openjdk/skara/bots/notify/NotifyBotFactory.java