TESTLINE [[nick!]user@]host
-Looks up given mask, looking for any matching I/K/D/G lines.
+Looks up given mask, looking for any matching I/K/D lines.
If username is not specified, it will look up "dummy@host".
If nickname is specified it will also search for RESVs.
This command will not perform dns lookups on a host, for best
results you must testline a host and its IP form.
+
+TESTLINE <#channel>
+
+Shows whether the channel is reserved or not.