view rustfmt.toml @ 46381:45afff0f530a

pyproject: add config file

This will tell pip et al to call our setup.py for the majority of
packaging concerns, but also gives us a place to put standard config
stuff like black.

Differential Revision: https://phab.mercurial-scm.org/D9833

edition = "2018"
max_width = 79
wrap_comments = true
error_on_line_overflow = true