Change build URLs.

If url_pattern is set in zuul.conf, use it instead of the build
url supplied by jenkins when reporting a change to gerrit.

Change-Id: Ic66b1efb5c7eae0dbbfd1927ee2827d13729b568
Reviewed-on: https://review.openstack.org/11908
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins
3 files changed