fix: coding style and file format for chapter 11, 12, 13, 14 and 15.

eBook/exercises/chapter_14/goroutine_select.go

@@ -1,31 +1,30 @@
-// Q20b_goroutine.go
-package main
-
-import (
-	"fmt"
-	"os"
-)
-
-func tel(ch chan int, quit chan bool) {
-	for i:=0; i < 15; i++ {
-		ch <- i
-	}
-	quit <- true
-}
-
-func main() {
-	var ok = true
-	ch := make(chan int)
-	quit := make(chan bool)
-
-	go tel(ch, quit)
-	for ok {
-		select {
-			case i:= <-ch:
-				fmt.Printf("The counter is at %d\n", i)
-			case <-quit:
-				os.Exit(0)
-		}
-	}
-}
-
+// Q20b_goroutine.go
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func tel(ch chan int, quit chan bool) {
+	for i := 0; i < 15; i++ {
+		ch <- i
+	}
+	quit <- true
+}
+
+func main() {
+	var ok = true
+	ch := make(chan int)
+	quit := make(chan bool)
+
+	go tel(ch, quit)
+	for ok {
+		select {
+		case i := <-ch:
+			fmt.Printf("The counter is at %d\n", i)
+		case <-quit:
+			os.Exit(0)
+		}
+	}
+}