pubsub: clarify MaxExtension documentation
@@ -202,7 +202,7 @@ type ReceiveSettings struct {
// automatically extend the ack deadline for each message.
//
// The Subscription will automatically extend the ack deadline of all
- // fetched Messages for the duration specified. Automatic deadline
+ // fetched Messages up to the duration specified. Automatic deadline
// extension may be disabled by specifying a duration less than 0.
MaxExtension time.Duration
