import-checker: allow 'from typing import ...'
Suppresses the following error in test-check-module-imports.t:
mercurial/encoding.py:24: relative import of stdlib module
# 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
[*.t]
indent_size = 2
indent_style = space
trim_trailing_whitespace = false