2064b30fce
Recent commit 36dbad3922 to default to frozen string literals (via `frozen_string_literal`) broke `check_for_unsupported_macos()` on outdated releases--due to attempted modification of a frozen string literal.
This breaks `install` and `doctor`.
It's like the change wasn't tested on an unsupported outdated release or something... :D
Adding a `+` prefix is apparently one way around this issue according to https://stackoverflow.com/questions/37799296/what-does-the-comment-frozen-string-literal-true-do#37799399. The change worked for me.
Library
This directory contains all the code run by the official brew and brew cask commands in Homebrew and all formulae (package descriptions) in taps (repositories containing formulae) in Taps subdirectories.