Edit your formula /usr/local/Library/Formula/brew-gem.rb to point at this branch:
require 'formula'
class BrewGem < Formula
homepage 'https://github.com/sportngin/brew-gem'
url 'https://github.com/sportngin/brew-gem/archive/install-uninstall.tar.gz'
def install
bin.install 'bin/brew-gem'
end
end
Edit your formula /usr/local/Library/Formula/brew-gem.rb to point at this branch:
This should all work: