[css-color-5] tidy wording in security and privacy appendix

Author: svgeesus

css-color-5/Overview.bs

@@ -786,7 +786,7 @@ Unless otherwise specified, if no specific hue interpolation algorithm is select
 Security and Privacy Considerations {#SecPriv}
 ===================================
 
-This specification introduces no new security or privacy considerations.
+No new security or privacy considerations have been reported on this specification.
 
 Acessibility Considerations {#Ally}
 ===========================