Some RST warnings are not recognized
Created by: SteinHeselmans
Example of warning not recognized:
/path/to/file.rst:None: WARNING: Traceability: cannot link to XXX, item is not defined
Rumours say it is because of a missing line number, and more rumours say that this regex would work
^(.+?:None): (DEBUG|INFO|WARNING|ERROR|SEVERE): (.+)\n?$
Warning is from mlx.traceability plugin, which could print a line number iso the None (see issue https://github.com/melexis/sphinx-traceability-extension/issues/2).