485981: support Gerrit 2.13.8 (reduce errors)

Change-Id: Ia5622629004c54f1e014e6571e1821e37212a15b
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=485981
Signed-off-by: Frank Becker <eclipse@frank-becker.de>
5 files changed