Bug 326523 - Reject blatantly invalid CTCP Ping responses

ChatZilla Only.
p=rdmsoft@bugs.rdmsoft.com (Robert Marshall)
r=samuel

extensions/irc/locales/en-US/chrome/chatzilla.properties

@@ -1148,7 +1148,8 @@ msg.confirm.disconnect.all = Are you sure you want to disconnect from ALL networ
 msg.no.connected.nets      = You are not connected to any networks.
 msg.no.reconnectable.nets  = There are no networks to reconnect to.
 
-msg.ping.reply      = Ping reply from %S in %S"
+msg.ping.reply         = Ping reply from %S in %S.
+msg.ping.reply.invalid = Malformed ping reply from %S.
 msg.prefix.response    = "%S, your result is,
 
 msg.topic.changed = "%S has changed the topic to ``%S''