brew caskにlanguageを指定するらしいけれど

TL;DR

  • 動いてくれ頼む

Log

➜  ~ brew cask search firefox
==> Exact Match
firefox
==> Partial Matches
firefox-beta firefox-esr firefoxdeveloperedition firefoxnightly multifirefox
➜  ~
➜  ~ brew cask install firefoxnightly --language=en
Error: invalid option: --language=en

Refs

追記1 [2017/06/25]