- -r --reverse reverse order sort\n\
- -o --output file output into a file\n\
- -L --limit nr output limit mask 77 - 00\n\
- -v --version version information\n\
- -h --help this screen\n\
+ -r, --reverse reverse order sort\n\
+ -o, --output=FILE output into a file\n\
+ -L, --limit=NR output limit mask 77 - 00\n\
+ -v, --version version information\n\
+ -h, --help this screen\n\