Add wsl linter and fix

Signed-off-by: Émile Ré <emile@probo.com>

pkg/coredata/obligation_order_field.go

@@ -49,5 +49,6 @@ func (p *ObligationOrderField) UnmarshalText(text []byte) error {
 		*p = ObligationOrderField(val)
 		return nil
 	}
+
 	return fmt.Errorf("invalid ObligationOrderField value: %q", val)
 }