Say 'Tor' instead of 'Tor Exit Nodes'

wiki/src/doc/anonymous_internet/pidgin.mdwn

@@ -95,8 +95,8 @@ the message is notified by a warning.
 IRC servers blocking Tor
 ========================
 
-Some IRC servers block connections from Tor Exit Nodes, because the
-Tor Exit Nodes are being used to spam IRC users.
+Some IRC servers block connections from Tor because
+Tor is used to spam IRC users.
 Some IRC servers explain their policy regarding Tor.
 
 - [Accessing freenode Via Tor](https://freenode.net/irc_servers.shtml#tor)