pyacc-3.0.2 -V (return code: 1)
TP Yacc Version 4.1a [April 2000], Copyright (c) 1990-2000 Albert Graef
invalid option --version
pyacc-3.0.2 (return code: 0)
TP Yacc Version 4.1a [April 2000], Copyright (c) 1990-2000 Albert Graef
Usage: pyacc [options] yacc-file[.y] [output-file[.pas]]
Options: -v verbose, -d debug