Optimizer for PNG files

Current version

pngcrush requires the following formula to be installed:
xz 5.2.3 General-purpose data compression with high compression ratio

Recent formula history

ilovezfs pngcrush 1.8.13
ilovezfs pngcrush 1.8.12
Miguel Araújo pngcrush: fix homepage link
Miguel Araújo pngcrush: fix audit about sourceforge link
Alexander Hamann pngcrush 1.8.11

Formula code at GitHub