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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.