If revision-parameter is set to e.g. '-3', now we search for the previous
3-rd change of the relevant po-file instead of the previous 3-rd commit.
We now also pass options through the environment, though it is not needed for git.
This way we overcome the deficiency of "hg" and "svn", which do not allow
to pass self-defined options to underlying diff-command.
New options
--display-fuzzy=[1|0} # Enable/disable display of fuzzy messages
--display-untranslated=[1|0} # Enable/disable display of untranslated messages
Convert each given path on command line to absolute path prior to changing
the working directory
printed next to each other. To test, try e.g.
"diff_po.pl -r39000:39100 sk.po"
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@39246 a592a061-630c-0410-9148-cb99ea01b6c8