https://github.com/CVEProject/cve-services/blob/0e528de273cc5b9abb8b97746693ebc51487fa5e/src/controller/registry-user.controller/registry-user.controller.js#L199 This apparently once was an attempt to concatenate `was successfully created.` to another string, but the use of a template literal means that ``` + ' ``` appears in the output.