update book code

eBook/examples/chapter_7/make_slice.go

@@ -1,17 +1,18 @@
-package main
-import "fmt"
-
-func main() {
-    var slice1 []int = make([]int, 10)
-    // load the array/slice:
-    for i := 0; i < len(slice1); i++ {
-        slice1[i] = 5 * i
-    }
-
-    // print the slice:
-    for i := 0; i < len(slice1); i++ {
-        fmt.Printf("Slice at %d is %d\n", i, slice1[i])
-    }
-    fmt.Printf("\nThe length of slice1 is %d\n", len(slice1))
-    fmt.Printf("The capacity of slice1 is %d\n", cap(slice1))
-}
+package main
+
+import "fmt"
+
+func main() {
+	// var slice1 []int = make([]int, 10)
+	slice1 := make([]int, 10)
+	// load the array/slice:
+	for i := 0; i < len(slice1); i++ {
+		slice1[i] = 5 * i
+	}
+	// print the slice:
+	for i := 0; i < len(slice1); i++ {
+		fmt.Printf("Slice at %d is %d\n", i, slice1[i])
+	}
+	fmt.Printf("\nThe length of slice1 is %d\n", len(slice1))
+	fmt.Printf("The capacity of slice1 is %d\n", cap(slice1))
+}