linuxmint/Cinnamon — pull request #2569 by City-busz (2013-10-31 00:25:25+00:00)
Title: cinnamon-settings-users: use pkexec instead of gksu

gksu is a deprecated stuff, and Cinnamon already has a nice polkit authentication agent. So use polkit to authenticate the user when launch cinnamon-settings-users.