#81 increases file-size

[Johannes Kalliauer]

I tried optimizing https://upload.wikimedia.org/wikipedia/commons/c/ce/Pngcrush_screenshot.png (114343 bytes) and it resulted in a 4% larger file (119196 bytes).

If it doesn't find a better optimization it should output the original file?

Copyright of image:
Author: Glenn Randers-Pehrson and pngcrush contributors and https://commons.wikimedia.org/wiki/User:VulcanSphere
License: https://en.wikipedia.org/wiki/Zlib_License
Source: https://commons.wikimedia.org/wiki/File:Pngcrush_screenshot.png