access/ftp: do not log sensitive information
access/ftp: do not log sensitive information

PASS and ACCT are by their definition sensitive data, as such we
should not log their payload when such requests are sent.

These changes simply censors the payload, as well as the number of
bytes sent (so that the length of the payload is not leaked).

fixes #17440

Signed-off-by: Thomas Guillem <5f50a84c1fa3bcff146405017f36aec1a10a9e38@gllm.fr>

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc