Make sure there's a ref and checkcode

Author: wchen-r7

modules/exploits/windows/local/ms16_016_webdav.rb

@@ -50,8 +50,7 @@ def initialize(info={})
       'References'     =>
         [
           [ 'CVE', '2016-0051' ],
-          [ 'MSB', 'MS16-016'  ],
-          [ 'URL', 'http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0051' ]
+          [ 'MSB', 'MS16-016'  ]
         ],
       'DisclosureDate' => 'Feb 09 2016',
       'DefaultTarget'  => 0
@@ -62,6 +61,8 @@ def check
     if sysinfo["Architecture"] =~ /wow64/i or sysinfo["Architecture"] =~ /x64/
       return Exploit::CheckCode::Safe
     end
+
+    Exploit::CheckCode::Detected
   end
 
   def exploit