[Rev 02] RFR: jcheck: duplicate-issues should only check id and support "dup"

[Erik Helin]

> Hi all,
> 
> please review this patch that makes the "duplicate-issues" check in JCheck
> _only_ consider issue ids (e.g. `8123456`) when looking for duplicates. I also
> added support for the "legacy" .jcheck/conf parser to understands the `bugids =
> dup` configuration line.
> 
> Testing:
> - Manual testing on Linux x64
> 
> Thanks,
> Erik

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

  Do not rely on iteration order

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

Changes:
  - all: https://git.openjdk.java.net/skara/pull/533/files
  - new: https://git.openjdk.java.net/skara/pull/533/files/8986da78..01ee08f1

Webrevs:
 - full: https://webrevs.openjdk.java.net/skara/533/webrev.02
 - incr: https://webrevs.openjdk.java.net/skara/533/webrev.01-02

  Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/skara/pull/533.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/533/head:pull/533

PR: https://git.openjdk.java.net/skara/pull/533