Add a missing require

HD Moore · HD Moore · commit 63b0eace3253 · 2013-05-04T22:39:57.000-05:00
diff --git a/modules/auxiliary/gather/shodan_search.rb b/modules/auxiliary/gather/shodan_search.rb
@@ -7,6 +7,7 @@
 
 require 'msf/core'
 require 'rex'
+require 'net/dns'
 
 class Metasploit4 < Msf::Auxiliary
 
