[Integrated] RFR: git-fork: add --sync option

[Erik Helin]

Changeset: d0f98bec
Author:    Erik Helin <ehelin at openjdk.org>
Date:      2019-12-10 09:08:07 +0000
URL:       https://git.openjdk.java.net/skara/commit/d0f98bec

git-fork: add --sync option

Reviewed-by: rwestberg

! cli/src/main/java/org/openjdk/skara/cli/GitFork.java
! cli/src/main/java/org/openjdk/skara/cli/GitSync.java