Fix an errant bitwise-and used as bool

Squashed commit of the following:

commit 748ab76d71422e5909dc29403fd24ceb025504b5
Author: Rob Fuller <jd.mubix@gmail.com>
Date:   Fri Jul 20 02:50:50 2012 -0400

    fixes dir/file check

[Closes #626]

lib/rex/proto/smb/client.rb

@@ -1878,7 +1878,7 @@ NTLM_UTILS = Rex::Proto::NTLM::Utils
 				name = resp_data[didx + 70 + 24, info[15]].sub!(/\x00+$/, '')
 				files[name] =
 				{
-					'type' => (info[14] & 0x10) ? 'D' : 'F',
+					'type' => ((info[14] & 0x10)==0x10) ? 'D' : 'F',
 					'attr' => info[14],
 					'info' => info
 				}