Fix one remaining sentence using on-off to false-true.

getusermedia.html

@@ -5096,9 +5096,9 @@ <h1>Privacy Indicator Requirements</h1>
       <li>Any false-to-true transition indicated MUST remain observable for a
       sufficient time that a reasonably-observant user could become
       aware of it.</li>
-      <li>Any of the above indications MAY be combined as long as
-      the combined indication cannot transition to off if any of its
-      component indications are still on.</li>
+      <li>Any of the above transition indications MAY be combined as long as
+      the combined indication cannot transition to false if any of its
+      component indications are still true.</li>
     </ul>
     <p>and the following are encouraged behaviors for the User Agent:</p>
     <ul>