[Integrated] RFR: contributor command: better validation of input

[Erik Helin]

Changeset: 132bd38b
Author:    Erik Helin <ehelin at openjdk.org>
Date:      2020-02-11 09:17:42 +0000
URL:       https://git.openjdk.java.net/skara/commit/132bd38b

contributor command: better validation of input

Reviewed-by: rwestberg

! bots/pr/src/main/java/org/openjdk/skara/bots/pr/ContributorCommand.java
! bots/pr/src/test/java/org/openjdk/skara/bots/pr/ContributorTests.java
! vcs/src/main/java/org/openjdk/skara/vcs/openjdk/CommitMessageSyntax.java