WHOX is not sanitized for ::1

[slingamn]

Reported by knolle in the support channel:

whois shivaramtest
@time=2022-07-15T01:47:17.992Z :irc.ergo.chat 311 shivaramtest shivaramtest ~u s7fnmzgihcy5g.irc * r
@time=2022-07-15T01:47:17.992Z :irc.ergo.chat 319 shivaramtest shivaramtest :#chat #test
@time=2022-07-15T01:47:17.992Z :irc.ergo.chat 338 shivaramtest shivaramtest ~u@0::1 0::1 :Actual user@host, Actual IP
@time=2022-07-15T01:47:17.992Z :irc.ergo.chat 379 shivaramtest shivaramtest :is using modes +Zi
@time=2022-07-15T01:47:17.992Z :irc.ergo.chat 671 shivaramtest shivaramtest :is using a secure connection
@time=2022-07-15T01:47:17.992Z :irc.ergo.chat 317 shivaramtest shivaramtest 43 1657849594 :seconds idle, signon time
@time=2022-07-15T01:47:17.992Z :irc.ergo.chat 318 shivaramtest shivaramtest :End of /WHOIS list
who #test
@time=2022-07-15T01:48:53.120Z :irc.ergo.chat 352 shivaramtest #test ~u pwaukivzzi8mk.irc irc.ergo.chat petteri Hr :0 Petteri
@time=2022-07-15T01:48:53.120Z :irc.ergo.chat 352 shivaramtest #test ~u s7fnmzgihcy5g.irc irc.ergo.chat shivaramtest H :0 r
@time=2022-07-15T01:48:53.120Z :irc.ergo.chat 352 shivaramtest #test ~u s57bjfdt23bwk.irc irc.ergo.chat y Hr :0 y
@time=2022-07-15T01:48:53.120Z :irc.ergo.chat 315 shivaramtest #test :End of WHO list
who #test %ai
@time=2022-07-15T01:49:03.712Z :irc.ergo.chat 354 shivaramtest 255.255.255.255 petteri
:irc.ergo.chat 400 * :Error assembling message for sending
@time=2022-07-15T01:49:03.712Z :irc.ergo.chat 354 shivaramtest 255.255.255.255 y
@time=2022-07-15T01:49:03.712Z :irc.ergo.chat 315 shivaramtest #test :End of WHO list

::1 is not valid as a non-final parameter, hence the 400. This must be represented instead as 0::1, as in the WHO output.

[slingamn]

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