Re: [PATCH-v2] sctp: user perfect name for Delayed SACK Timer option

The option name of Delayed SACK Timer should be SCTP_DELAYED_SACK,
not SCTP_DELAYED_ACK.

Left SCTP_DELAYED_ACK be concomitant with SCTP_DELAYED_SACK,
for making compatibility with existing applications.

SCTP_DELAYED_ACK is introduced by my typo when change it to
API compliance two years ago. So:

Acked-by: Wei Yongjun <redacted>