Fixing homebrew after installing Yosemite

Well...well...installing Yosemite broke homebrew.  Big surprise.  I figured out how to fix it by checking out:

http://apple.stackexchange.com/questions/153790/how-to-fix-brew-after-its-upgrade-to-yosemite

>$ brew

/usr/local/bin/brew: /usr/local/Library/brew.rb: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby: bad interpreter: No such file or directory

/usr/local/bin/brew: line 23: /usr/local/Library/brew.rb: Undefined error: 0

>$ cd /usr/local/Library

>$ ls

Aliases/       Contributions/ ENV/           Formula/       Homebrew/      LinkedKegs/    Taps/          brew.rb*

>$ git pull origin master

...bunch of stuff...

Then you can run 'brew update'.