atomictempfile: add context manager support
Close the file (moving it in place) on clean context exit, discard when there
has been an exception.
# 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