Johannes Wienke 5d6b4ef73f Support older checkstyle versions
The output format used by older checkstyle versions differs from the one
of new versions. This commit adds a second parsing iteration on the
output lines with a suitable pattern to support both versions in
parallel. Due to the differences in the order of matching groups this is
hard to achieve in a single pass through the output lines.

An appropriate test case is added.
2018-11-07 13:25:48 +01:00
..
2018-03-02 20:57:55 +00:00
2018-05-04 22:33:08 +02:00
2018-02-10 13:17:53 -06:00