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

eBook/exercises/chapter_14/producer_consumer.go

@@ -1,42 +1,43 @@
-// goroutines2.go
-package main
-
-import "fmt"
-
-// integer producer:
-func numGen(start, count int, out chan<- int) {
-	for i := 0; i < count; i++ {
-		out <- start
-		start = start + count
-	}
-	close(out)
-}
-
-// integer consumer:
-func numEchoRange(in <-chan int, done chan<- bool) {
-	for num := range in {
-		fmt.Printf("%d\n", num)
-	}
-	done <- true
-}
-
-func main() {
-	numChan := make(chan int)
-	done := make(chan bool)
-	go numGen(0, 10, numChan)
-	go numEchoRange(numChan, done)
-
-	<-done
-}
-/* Output:
-0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-*/
+// goroutines2.go
+package main
+
+import "fmt"
+
+// integer producer:
+func numGen(start, count int, out chan<- int) {
+	for i := 0; i < count; i++ {
+		out <- start
+		start = start + count
+	}
+	close(out)
+}
+
+// integer consumer:
+func numEchoRange(in <-chan int, done chan<- bool) {
+	for num := range in {
+		fmt.Printf("%d\n", num)
+	}
+	done <- true
+}
+
+func main() {
+	numChan := make(chan int)
+	done := make(chan bool)
+	go numGen(0, 10, numChan)
+	go numEchoRange(numChan, done)
+
+	<-done
+}
+
+/* Output:
+0
+10
+20
+30
+40
+50
+60
+70
+80
+90
+*/