[Integrated] RFR: Add test subcommand to git-pr

[Erik Helin]

Changeset: cf5a6cf8
Author:    Erik Helin <ehelin at openjdk.org>
Date:      2019-12-03 14:10:07 +0000
URL:       https://git.openjdk.java.net/skara/commit/cf5a6cf8

Add test subcommand to git-pr

Reviewed-by: rwestberg

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