telnet -V (return code: 1)
telnet: invalid option -- '-'
Usage: telnet [-4] [-6] [-8] [-E] [-L] [-a] [-d] [-e char] [-l user]
[-n tracefile] [ -b addr ] [-r] [host-name [port]]
telnet --help (return code: 1)
telnet: invalid option -- '-'
Usage: telnet [-4] [-6] [-8] [-E] [-L] [-a] [-d] [-e char] [-l user]
[-n tracefile] [ -b addr ] [-r] [host-name [port]]