Ensure consistent output from git command #181
Merged
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The git command output can vary by language which would cause assertions
errors when parsing the output.
On POSIX system the language used by git can be adjusted by LC_MESSAGES.
The special language 'C' is guaranteed to be always available and is
whatever default the software has been written in (usually english, the
case for git).
Thus passing LC_MESSAGES to Popen will ensure we receive from git a
consistent output regardless of the user preference.
Addresses #153