メモ）brew updateでエラーを吐かれた

brew updateでエラーを吐かれたのでメモ。
Homebrewのgithubには6日前（2015/8/6）にissueあがってた。
エラー出てももう一度updateすれば大丈夫みたい。

参考

Error: uninitialized constant Formulary::HOMEBREW_CORE_FORMULA_REGEX #42553
https://github.com/Homebrew/homebrew/issues/42553

エラー内容

$ brew update
Error: uninitialized constant Formulary::HOMEBREW_CORE_FORMULA_REGEX
Please report this bug:
    https://git.io/brew-troubleshooting
/usr/local/Library/Homebrew/formulary.rb:227:in `loader_for'
/usr/local/Library/Homebrew/formulary.rb:176:in `factory'
/usr/local/Library/Homebrew/cmd/update.rb:173:in `block in report'
/usr/local/Library/Homebrew/cmd/update.rb:159:in `each_line'
/usr/local/Library/Homebrew/cmd/update.rb:159:in `report'
/usr/local/Library/Homebrew/cmd/update.rb:24:in `update'
/usr/local/Library/brew.rb:140:in `<main>'

やったこと

$ brew --version
0.9.5

$ brew update
Updated Homebrew from 000000fb to 000000fb.
...

$ brew update
Already up-to-date.