debian: fix lintian warning about debhelper
It seems this is correct but does it work on older distros? I ran the
docker-jessie rule and didn't get any warnings.
# 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