Added completion for second argument for 'brew reinstall'

plugins/brew/_brew

@@ -76,7 +76,7 @@ case "$words[1]" in
   install|home|homepage|log|info|abv|uses|cat|deps|edit|options|versions)
     _brew_all_formulae
     _wanted formulae expl 'all formulae' compadd -a formulae ;;
-  remove|rm|uninstall|unlink|cleanup|link|ln)
+  reinstall|remove|rm|uninstall|unlink|cleanup|link|ln)
     _brew_installed_formulae
     _wanted installed_formulae expl 'installed formulae' compadd -a installed_formulae ;;
 esac