Maven SCM failed to parse "git status" output if git messages are
translated. This breaks at least maven-release plugin.
The issue is that GitStatusConsumer uses regular expressions to
parse the output of "git status" and these regexps don't match
anymore if git messages are translated. In order to avoid this, we
should use the "--porcelain" option on "git status" to produce
a machine readable output which can be parsed even if git messages
I've attached a patch which solves the problem.