fix: coding style and file format for all example.

eBook/examples/chapter_14/goroutine3.go

@@ -1,29 +1,30 @@
-package main
-
-import "fmt"
-
-func main() {
-	ch := make(chan string)
-	go sendData(ch)
-	getData(ch)
-}
-
-func sendData(ch chan string) {
-	ch <- "Washington"
-	ch <- "Tripoli"
-	ch <- "London"
-	ch <- "Beijing"
-	ch <- "Tokio"
-	close(ch)
-}
-
-func getData(ch chan string) {
-	for {
-		input, open := <-ch
-		if !open {
-			break
-		}
-		fmt.Printf("%s ", input)
-	}
-}
-// Washington Tripoli London Beijing Tokio 
+package main
+
+import "fmt"
+
+func main() {
+	ch := make(chan string)
+	go sendData(ch)
+	getData(ch)
+}
+
+func sendData(ch chan string) {
+	ch <- "Washington"
+	ch <- "Tripoli"
+	ch <- "London"
+	ch <- "Beijing"
+	ch <- "Tokio"
+	close(ch)
+}
+
+func getData(ch chan string) {
+	for {
+		input, open := <-ch
+		if !open {
+			break
+		}
+		fmt.Printf("%s ", input)
+	}
+}
+
+// Washington Tripoli London Beijing Tokio