After PNG collision on Mac file showing corrupted and not opening.

[anilchudasama1997]

Hello @all,

I have generated an image collision using following command and collision images are also generated properly with same MD5 value but in MacOS it's showing The file “collision1.png” could not be opened. error message when try open generated collision png file.

Commands: time ./png.py yes.png no.png md5sum collision*.png file collosion*.png vbindiff collosion*.png img2txt -H 10 collosion1.png img2txt -H 10 collosion1.png