Extract `truthy?` method

ee/app/controllers/projects/licenses_controller.rb

@@ -72,9 +72,13 @@ module Projects
     def matching_policies_from(license_compliance)
       filters = matching_policies_params
       license_compliance.find_policies(
-        detected_only: filters[:detected] == 'true',
+        detected_only: truthy?(filters[:detected]),
         classification: filters[:classification]
       )
     end
+
+    def truthy?(value)
+      value.in?(%w[true 1])
+    end
   end
 end