Just saw this comment in the HISTORY file and noticed that the original
and replaced values look just the same.
Typos (introduced: Postfix 2.10): in comments about
IPv4-in-IPv6 addresses, replace :ffff::188.8.131.52 with the
correct form :ffff::184.108.40.206. Incorrect or misleading comments
are worse than no comments. Files: smtpd/smtpd_haproxy.c,
In the smtpd_haproxy.c file itself the new value is ::ffff:220.127.116.11