Symbol: optional_argument
lib/libc/stdlib/getopt_long.c
298
long_options[match].has_arg == optional_argument) {
usr.bin/diff/diff.c
51
{ "context", optional_argument, 0, 'C' },
usr.bin/diff/diff.c
69
{ "unified", optional_argument, 0, 'U' },
usr.bin/sort/sort.c
166
{ "check", optional_argument, NULL, 'c' },
usr.bin/sort/sort.c
167
{ "check=silent|quiet", optional_argument, NULL, 'C' },