allow arguments to programs, e.g.   voglperfrun -- glxgears -info did not work before because -info was interpreted as an argument to voglperf
allow arguments to programs, e.g.
  voglperfrun -- glxgears -info
did not work before because -info was interpreted as an argument to voglperf

ProfessorKaos64/voglperf,ProfessorKaos64/voglperf,ProfessorKaos64/voglperf