osx: install completion scripts using install(1) to avoid umask badness
This actually fixes some tests that were showing us umask badness that
had been overlooked.
# 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