Set default locale

[boronine]

Getting this error on Debian: perl: warning: Setting locale failed.

Seems that the fix is to add LANG=C to /etc/profile. Should we automate that?

https://wiki.debian.org/Locale

[boronine]

Got an error from tmux suggesting I should use LANG=C.UTF-8

[boronine]

That fixed it. Might also need to run sudo locale-gen en_US.UTF-8?