TShock/TShock — pull request #484 by Scavenger3 (2013-06-26 11:26:40+00:00)
Title: Allow a player to run a command if the permissions are empty.

Olink set the default value for permissions to an empty list: https://github.com/TShock/TShock/commit/b37552ff271c8a335815f9cf41dede7da71eafcb#L0R87
However the CanRun function doesn't take this into account and wouldn't allow the player to execute the command.