Fix a regression in erc-dcc

* erc-dcc.el (erc-dcc-handle-ctcp-send): Fix a regression
introduced on 2011-11-28 when fixing quoted filenames matching,
the regex group was not corrected.

lisp/erc/ChangeLog

+2012-05-14  Mike Kazantsev  <mk.fraggod@gmail.com>  (tiny change)
+
+	* erc-dcc.el (erc-dcc-handle-ctcp-send): Fix a regression
+	introduced on 2011-11-28 when fixing quoted filenames matching,
+	the regex group was not corrected.
+
 2012-05-13  Teemu Likonen  <tlikonen@iki.fi>
 
 	* erc-backend.el (erc-server-timestamp-format): New variable to

lisp/erc/erc-dcc.el

@@ -674,7 +674,7 @@ It extracts the information about the dcc request and adds it to
        ?r "SEND" ?n nick ?u login ?h host))
      ((string-match erc-dcc-ctcp-query-send-regexp query)
       (let ((filename
-             (or (match-string 3 query)
+             (or (match-string 5 query)
                  (erc-dcc-unquote-filename (match-string 2 query))))
             (ip       (erc-decimal-to-ip (match-string 6 query)))
             (port     (match-string 7 query))