Closes #122

You can apply it with: patch -p0 < c.patch

There are smaller patches possible, but i think this is OK for now.

• the file name could be smaller, but i wanted to use a real file in this repo
• the change could be smaller. only changing 1 character in a line that only has 1 character
• actually use diff instead of git diff

Feel free to improve in an additional PR!