[Integrated] RFR: 179: Make git-pr flags configurable

[Erik Helin]

Changeset: e781a164
Author:    Erik Helin <ehelin at openjdk.org>
Date:      2019-12-17 08:58:26 +0000
URL:       https://git.openjdk.java.net/skara/commit/e781a164

179: Make git-pr flags configurable

Reviewed-by: rwestberg

! cli/src/main/java/org/openjdk/skara/cli/GitPr.java