Do not change terminal colour

[ffaf1]

To reproduce:

• run ghcid to run tests (e.g. ghcid -c "cabal repl test" -T "import Main" -T ":main --color -f failed-examples")
• have some test fail
• press C-c
• now your terminal is in crimson red and you need to reset it to get normal colours back

Expected behaviour:

• do not tamper with terminal colours on exit (even if it is C-c).

[ndmitchell]

Thanks for the report. Patch welcome, but I've mostly moved to using Haskell Language Server, so am unlikely to fix this myself.

[tankorsmash]

This isn't related but this issue is how I found out I needed to pass --color to :test main --color to get Colourista to work, so saying thank you both!