Cannot specify file/directory with 64 hex.characters as its name

[pepa65]

Because dcp 123456789012345678901234567890123456789012345678901234567890abcd will always be interpreted as receiving a transmission with this key, these files/directories cannot be sent. This problem can either be ignored, or it could be fixed with this syntax: dcp -k <key> or dcp --key <key>. (Another option could be -r or --receive if it were available...)