revset: add support for "wdir()^n"
This patch catches the WdirUnsupported exception raised, and adds support for
wdir^n which will give us the nth parent of the working directory.
# 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