Clarify in Timers that we give timer2 a real chance to fire

Closes #304

examples/timers/timers.go

@@ -21,21 +21,25 @@ func main() {
 
 	// The `<-timer1.C` blocks on the timer's channel `C`
 	// until it sends a value indicating that the timer
-	// expired.
+	// fired.
 	<-timer1.C
-	fmt.Println("Timer 1 expired")
+	fmt.Println("Timer 1 fired")
 
 	// If you just wanted to wait, you could have used
 	// `time.Sleep`. One reason a timer may be useful is
-	// that you can cancel the timer before it expires.
+	// that you can cancel the timer before it fires.
 	// Here's an example of that.
 	timer2 := time.NewTimer(time.Second)
 	go func() {
 		<-timer2.C
-		fmt.Println("Timer 2 expired")
+		fmt.Println("Timer 2 fired")
 	}()
 	stop2 := timer2.Stop()
 	if stop2 {
 		fmt.Println("Timer 2 stopped")
 	}
+
+	// Give the `timer2` enough time to fire, if it ever
+	// was going to, to show it is in fact stopped.
+	time.Sleep(2 * time.Second)
 }

examples/timers/timers.hash

@@ -1,2 +1,2 @@
-fb413c9b1152a30107c53bf0a739a22c0056976b
-_cLT2ewHYO8
+36cae12a3ca529e473d7839e9573c3e0a202c2de
+gF7VLRz3URM

examples/timers/timers.sh

@@ -1,6 +1,6 @@
-// The first timer will expire ~2s after we start the
+// The first timer will fire ~2s after we start the
 // program, but the second should be stopped before it has
-// a chance to expire.
+// a chance to fire.
 $ go run timers.go
-Timer 1 expired
+Timer 1 fired
 Timer 2 stopped