fix: coding style and file format for all example.

eBook/examples/chapter_10/embedd_struct.go

@@ -1,18 +1,18 @@
-package main
-
-import "fmt"
-
-type A struct {
-	ax, ay int
-}
-
-type B struct {
-	A
-	bx, by float32
-}
-
-func main() {
-	b := B{A{1, 2}, 3.0, 4.0}
-	fmt.Println(b.ax, b.ay, b.bx, b.by)
-	fmt.Println(b.A)
-}
+package main
+
+import "fmt"
+
+type A struct {
+	ax, ay int
+}
+
+type B struct {
+	A
+	bx, by float32
+}
+
+func main() {
+	b := B{A{1, 2}, 3.0, 4.0}
+	fmt.Println(b.ax, b.ay, b.bx, b.by)
+	fmt.Println(b.A)
+}