case 'h':
printf("%s [-h,--help] <device file>\n\n"
"Video4Linux device identification.\n\n"
" -h Print this message\n"
, program_invocation_short_name);
return 0;
case 'h':
printf("%s [-h,--help] <device file>\n\n"
"Video4Linux device identification.\n\n"
" -h Print this message\n"
, program_invocation_short_name);
return 0;