$ brew install pgtune
==> Downloading http://pgfoundry.org/frs/download.php/2449/pgtune-0.9.3.tar.gz
curl: (22) The requested URL returned error: 404 Not Found
Error: Failed to download resource "pgtune"
Download failed: http://pgfoundry.org/frs/download.php/2449/pgtune-0.9.3.tar.gz
$ brew install pgtune --HEAD
==> Cloning https://github.com/gregs1104/pgtune.git
Cloning into '/Library/Caches/Homebrew/pgtune--git'...
remote: Counting objects: 14, done.
remote: Compressing objects: 100% (11/11), done.
remote: Total 14 (delta 5), reused 9 (delta 3), pack-reused 0
Unpacking objects: 100% (14/14), done.
Checking connectivity... done.
==> Checking out branch master
đş /usr/local/Cellar/pgtune/HEAD: 10 files, 180.7K, built in 1 second