Ensure uniq on #find_msb_numbers

spec/tools/msu_finder_spec.rb

@@ -3,7 +3,7 @@ load Metasploit::Framework.root.join('tools/msu_finder.rb').to_path
 require 'nokogiri'
 require 'uri'
 
-describe MicrosoftPatch do
+describe MicrosoftPatchFinder do
 
   before(:each) do
     cli = Rex::Proto::Http::Client.new('127.0.0.1')

tools/msu_finder.rb

@@ -435,7 +435,7 @@ module MicrosoftPatchFinder
         end
       rescue RuntimeError => e
         print_error(e.message)
-        return msb_numbers
+        return msb_numbers.uniq
       end
 
       msb_numbers.uniq