No se puede instalar Imagemagick en Mac con Brew
Estoy usando Brew v0.8 en mi Mac OS Lion.
Cuando intento instalar Imagemagick:
MacBook-kir:rails kir$ brew install imagemagick
/usr/bin/git
==> Cloning https://github.com/adamv/ImageMagick.git
Cloning into /Users/kir/Library/Caches/Homebrew/imagemagick--git...
fatal: https://github.com/adamv/ImageMagick.git/info/refs not found: did you run git update-server-info on the server?
Error: Failure while executing: git clone --depth 1 https://github.com/adamv/ImageMagick.git /Users/kir/Library/Caches/Homebrew/imagemagick--git
¿Cómo instalar Imagemagick?