SPL list template render fix

shared/workspaces/workspaces/workflow/services/workflow_service.py

@@ -223,9 +223,9 @@ class WorkflowService(WorkflowServiceIF):
             if "need_data" in request.argument:
                 if request.argument["need_data"] is True:
                     spl_list = request.argument["product_locator"].split(",")
-                    fetcher_string = "--product-locator "
+                    fetcher_string = " --product-locator"
                     request.argument["product_locator"] = fetcher_string + fetcher_string.join(
-                        spl for spl in spl_list
+                        " " + spl for spl in spl_list
                     )
                 request.argument["ramInGb"] = self.processing_settings.ramInGb