usage() should print e if present. Complain about too many args in purge_events()
usage() should print e if present. Complain about too many args in purge_events()

git-svn-id: 81e381228600e5752b80483efd2b45b26c451ea2@6428 e27351fd-9f3e-4f54-a53b-843176b1656c

trevor/calendarserver,trevor/calendarserver,trevor/calendarserver