Large portions of rubocopfmt.el is based on code from go-mode.el. As
such rubocopfmt.el should really carry the same license and copyright
as go-mode.el does.
Having the rubocopfmt Ruby gem as an external dependency is becoming
tedious. So lets parse rubocop's output and perform the diffing
ourselves within Emacs.
This effectively marks the end of the rubocopfmt Ruby gem, as I no
longer need it, and will not maintain it moving forward.
