.editorconfig

tests: add tests with commands.{update,rebase}.requiredest=False

This shows how rebase is currently broken with
commands.rebase.requiredest=False.

# 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