drawdag: allow override file contents via comments
This makes drawdag more flexible, and allow us to create non-clean merges in
test cases.
Differential Revision: https://phab.mercurial-scm.org/D385
# 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