upgrade: implement equality for 'improvement' object
Through the code, we use a mix of 'improvement' object and string. Having a
single type would be simpler. For this we need the object to be comparable.
# See http://EditorConfig.org for the specification
root = true
[*.py]
indent_size = 4
indent_style = space
trim_trailing_whitespace = true
[*.{c,h}]
indent_size = 8
indent_style = tab
trim_trailing_whitespace = true