Follow-up toand : The installation script can also download the Coder module (if it is not already installed). Can we also automate the installation of PHP_CodeSniffer? The DrupalCS project has been combined with Coder, and we should make sure we stay up to date.
The current instructions on http://drupal.org/node/1419988 include
sudo ln -sv /path/to/coder/coder_sniffer/Drupal $(pear config-get php_dir)/PHP/CodeSniffer/Standards/Drupal
After the patch in #2, the Vimrc configuration looks for Standards/Drupal instead of Standards/DrupalCodingStandard.