Mistake in making error message

There is a mistake:
https://github.com/typeorm/typeorm-typedi-extensions/blob/b6d540e2084c832a66573b23374384d367f725f5/src/errors/entity-type-missing.error.ts#L6

The addition operation will be executed first and the result will never be undefined. For the same reason `Missing "entityType" parameter of "@InjectRepository" decorator` will never be printed.