Add or fix @output sections in ms-sql-config, oracle-sid-brute,

iax2-version, pop3-brute, and skypev2-version.

scripts/pop3-brute.nse

@@ -6,6 +6,11 @@ Tries to log into a POP3 account by guessing usernames and passwords.
 -- @args pop3loginmethod The login method to use: <code>"USER"</code>
 -- (default), <code>"SASL-PLAIN"</code>, <code>"SASL-LOGIN"</code>,
 -- <code>"SASL-CRAM-MD5"</code>, or <code>"APOP"</code>.
+--
+-- @output
+-- PORT    STATE SERVICE
+-- 110/tcp open  pop3
+-- | pop3-brute: root : password
 
 author = "Philip Pickering"
 license = "Same as Nmap--See http://nmap.org/book/man-legal.html"