RFR: 443: /reviewer pull request command should accept multiple reviewers [v2]

[Erik Helin]

> Hi all,
> 
> please review this patch that makes the `/reviewer` pull request command accept multiple reviewers at once.
> 
> Testing:
> - [x] Added a unit test
> - [x] `make test` passes on Linux x64
> 
> Thanks,
> Erik

Erik Helin has updated the pull request incrementally with one additional commit since the last revision:

  Support both comma and space as separators

-------------

Changes:
  - all: https://git.openjdk.java.net/skara/pull/687/files
  - new: https://git.openjdk.java.net/skara/pull/687/files/9d2e5ffa..a2bc296c

Webrevs:
 - full: https://webrevs.openjdk.java.net/skara/687/webrev.01
 - incr: https://webrevs.openjdk.java.net/skara/687/webrev.00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/skara/pull/687.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/687/head:pull/687

PR: https://git.openjdk.java.net/skara/pull/687