ircquote: Use labeled-response when possible to reply to the user

[progval]

For example:

20:29:18 <val> valtest: ircquote @label=abcd WHOIS val
20:29:24 <valtest> val: @label=abcd :testnet.ergo.chat BATCH +4 labeled-response
20:29:26 <valtest> val: @time=2023-06-04T20:29:18.331Z;batch=4 :testnet.ergo.chat 311 valtest val ~u 8dcdfccjgu8zk.oragono * :Val Lorentz
20:29:28 <valtest> val: @time=2023-06-04T20:29:18.331Z;batch=4 :testnet.ergo.chat 319 valtest val :#limnoria-bots
20:29:30 <valtest> val: @time=2023-06-04T20:29:18.331Z;batch=4 :testnet.ergo.chat 671 valtest val :is using a secure connection
20:29:32 <valtest> val: @time=2023-06-04T20:29:18.331Z;batch=4 :testnet.ergo.chat 317 valtest val 0 1685531969 :seconds idle, signon time
20:29:34 <valtest> val: @time=2023-06-04T20:29:18.331Z;batch=4 :testnet.ergo.chat 318 valtest val :End of /WHOIS list
20:29:36 <valtest> val: :testnet.ergo.chat BATCH -4

20:29:38 <val> valtest: ircquote @label=abc PING foo
20:29:42 <valtest> val: @label=abc;time=2023-06-04T20:29:40.854Z :testnet.ergo.chat PONG testnet.ergo.chat foo