irssi: Fix for Linuxbrew (#862)
irssi: Fix for Linuxbrew (#862)

MacOS.sdk_path returns nil, meaning that the formula expected ncurses to be installed in /usr.
rwhogg/homebrew-core,rwhogg/homebrew-core,LinuxbrewTestBot/homebrew-core,LinuxbrewTestBot/homebrew-core,Linuxbrew/homebrew-core,maxim-belkin/homebrew-core,Linuxbrew/homebrew-core,maxim-belkin/homebrew-core