showfont -version (return code: 0)
showfont 1.0.5
showfont --help (return code: 1)
showfont: unrecognized argument: --help
Usage: showfont [-server servername] [-extents_only] [-noprops]
[-lsb] [-msb] [-LSB] [-MSB] [-unit #] [-pad #] [-bitmap_pad value]
[-start first_char] [-end last_char] -fn fontname
or: showfont -version