lib/berkshelf/resolver/graph.rb in berkshelf-5.5.0 vs lib/berkshelf/resolver/graph.rb in berkshelf-5.6.0

@@ -48,10 +48,10 @@
       # @param [Array<Berkshelf::Source>, Berkshelf::Source] sources
       #
       # @return [Array<Berkshelf::RemoteCookbook>]
       def universe(sources)
         cookbooks = []
-        Array(sources).each { |source| cookbooks = cookbooks | source.universe }
+        Array(sources).each { |source| cookbooks |= source.universe }
         cookbooks
       end
     end
   end
 end