fix: coding style and file format for all example.

eBook/examples/chapter_10/methodset1.go

@@ -1,22 +1,23 @@
-// methodset1.go
-package main
-
-import (
-	"fmt"
-)
-
-type List []int
-func (l List) Len() int { return len(l) }
-func (l *List) Append(val int) { *l = append(*l, val) }
-
-func main() {
-	  // A bare value
-        var lst List
-        lst.Append(1)
-        fmt.Printf("%v (len: %d)\n", lst, lst.Len()) // [1] (len: 1)
-
-        // A pointer value
-        plst := new(List)
-        plst.Append(2)
-        fmt.Printf("%v (len: %d)\n", plst, lst.Len()) // &[2] (len: 1)
-}
+// methodset1.go
+package main
+
+import (
+	"fmt"
+)
+
+type List []int
+
+func (l List) Len() int        { return len(l) }
+func (l *List) Append(val int) { *l = append(*l, val) }
+
+func main() {
+	// A bare value
+	var lst List
+	lst.Append(1)
+	fmt.Printf("%v (len: %d)\n", lst, lst.Len()) // [1] (len: 1)
+
+	// A pointer value
+	plst := new(List)
+	plst.Append(2)
+	fmt.Printf("%v (len: %d)\n", plst, lst.Len()) // &[2] (len: 1)
+}