General options
---------------
`-C'
`--copyright'
Prints a short note about the Copyright and copying conditions,
then exit without further processing.
`-G'
`--traditional'
As already explained, this option disables all GNU extensions to
`ptx' and switch to traditional mode.
`--help'
Prints a short help on standard output, then exit without further
processing.
`--version'
Prints the program verison on standard output, then exit without
further processing.