Remove trailing whitespace and convert tabs to 2 spaces

fix_whitespace.bash

# Warning: Operates on binary files - make sure to have all files in git to revert them!

# remove trailing whitespace recursively in a repo
find . -type f -not -iwholename '*.git*' | xargs sed -i -r 's/[   ]+$//' # [] contains a space and a tab

# convert tabs to spaces:
find . -type f -not -iwholename '*.git*' | xargs sed -i -r 's/  /  /g' # s/1/2/g ... 1 is a tab, 2 is two spaces

# revert binary files
git diff | grep Binary | sed 's/^Binary files a\///' | sed 's/ and .*$//' | xargs git checkout