mat=FORMAT
                    use FORMAT for the header date
  -e[CHAR[WIDTH]], --expand-tabs[=CHAR[WIDTH]]
                    expand input CHARs (TABs) to tab WIDTH (8)
  -F, -f, --form-feed
                    use form feeds instead of newlines to separate pages
                    (by a 3-line page header with -F or a 5-line header
                    and trailer without -F)
