# File lib/piston/commands/update.rb, line 111
      def self.detailed_help
        "usage: update [DIR [...]]\n\n  This operation has the effect of downloading all remote changes back to our\n  working copy.  If any local modifications were done, they will be preserved.\n  If merge conflicts occur, they will not be taken care of, and your subsequent\n  commit will fail.\n\n  Piston will refuse to update a folder if it has pending updates.  Run\n  'svn update' on the target folder to update it before running Piston\n  again.\n"
      end