Merge pull request #66 from sul-dlss/fix-error-message

Add a missing slash to the error message

lib/dor/services/workflow_service.rb

@@ -583,7 +583,7 @@ def workflow_resource_method(uri_string, meth = 'get', payload = '', opts = {})
           response.body
         end
       rescue *workflow_service_exceptions_to_catch => e
-        msg = "Failed to retrieve resource: #{meth} #{base_url}#{uri_string}"
+        msg = "Failed to retrieve resource: #{meth} #{base_url}/#{uri_string}"
         msg += " (HTTP status #{e.response[:status]})" if e.respond_to?(:response) && e.response
         raise Dor::WorkflowException, msg
       end