setopt [ {+|-}options | {+|-}o option name ] [ name ... ]
       Set  the  options  for  the  shell.   All   options
       specified either with flags or by name are set.  If
       no arguments are supplied, the names of all options
       currently set are printed.  If the -m flag is given
       the arguments are taken as patterns  (which  should
       be quoted to protect them from filename expansion),
       and all options with names matching these  patterns
       are set.
