inkscape: uses "lp" by default, should be "|lpr".

We can't change the preferences, it is hardcoded in the binary

Solution: 
ln -s /usr/bin/lpr /usr/bin/P
perl -pi -s "s/lp</|P</" /usr/bin/inkscape

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Gimp 2: uses lpc status

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Scribus: does not use the PRINTER variable...

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