Correct the allowexternaldomains option in SIP sample config.

Issue 10753


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@82751 65c4cc65-6c06-0410-ace0-fbb531ad65f3

configs/sip.conf.sample

@@ -388,7 +388,7 @@ srvlookup=yes			; Enable DNS SRV lookups on outbound calls
 				; for external calls to this domain
 ;domain=1.2.3.4			; Add IP address as local domain
 				; You can have several "domain" settings
-;allowexternalinvites=no	; Disable INVITE and REFER to non-local domains
+;allowexternaldomains=no	; Disable INVITE and REFER to non-local domains
 				; Default is yes
 ;autodomain=yes			; Turn this on to have Asterisk add local host
 				; name and local IP to domain list.