correct mistake from global find and replace.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4460 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_xml.c

@@ -28,7 +28,7 @@
  *
  * switch_xml.c -- XML PARSER
  *
- * Derived from switch_xml http://switch_xml.sourceforge.net
+ * Derived from ezxml http://ezxml.sourceforge.net
  * Original Copyright
  *
  * Copyright 2004, 2006 Aaron Voisine <aaron@voisine.org>