annotate: restructure formatter output to be nested list (BC)
Annotate data should be in [(file, [line...])...] form, but there was no
API to represent such data structure when I ported it to formatter. Now
we have fm.nested() and the -T option is still experimental, so we can fix
the data format.
# 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