Add frozen-string-literal comments top all source files, and address some issues related to this.

wvanbergen / chunky_png

Read/write access to PNG images in pure Ruby.

https://chunkypng.com

MIT License

1.05k stars 101 forks source link

Closed wvanbergen closed 4 years ago

wvanbergen commented 4 years ago

I was also able to get rid of some old compatibility functions that are no longer relevant