Fixed example_test.go

Co-authored-by: Joe Bergevin <josephbergevin@gmail.com>
Signed-off-by: Adolfo García Veytia (Puerco) <adolfo.garcia@uservers.net>

throttler/example_test.go

@@ -6,7 +6,7 @@ import "fmt"
 
 type httpPkg struct{}
 
-func (httpPkg) Get(url string) {}
+func (httpPkg) Get(url string) error { return nil }
 
 var http httpPkg
 
@@ -25,7 +25,7 @@ func ExampleThrottler() {
 		"http://www.somestupidname.com/",
 	}
 	// Create a new Throttler that will get 2 urls at a time
-	t := throttler.New(2, len(urls))
+	t := New(2, len(urls))
 	for _, url := range urls {
 		// Launch a goroutine to fetch the URL.
 		go func(url string) {
@@ -39,6 +39,9 @@ func ExampleThrottler() {
 		// Returning the total number of goroutines that have errored
 		// lets you choose to break out of the loop without starting any more
 		errorCount := t.Throttle()
+		if errorCount > 0 {
+			break
+		}
 	}
 }