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

eBook/exercises/chapter_12/hash_md5.go

@@ -1,20 +1,21 @@
-// hash_md5.go
-package main  
-  
-import (  
-       "fmt";  
-       "crypto/md5"  
-       "io"  
-)  
-  
-func main() {  
-     hasher := md5.New()
-	 b := []byte{}  
-     io.WriteString(hasher, "test")  
-     fmt.Printf("Result: %x\n", hasher.Sum(b)) 
- 	 fmt.Printf("Result: %d\n", hasher.Sum(b))
-} 
-/* Output:
-Result: 098f6bcd4621d373cade4e832627b4f6
-Result: [9 143 107 205 70 33 211 115 202 222 78 131 38 39 180 246]
-*/
+// hash_md5.go
+package main
+
+import (
+	"crypto/md5"
+	"fmt"
+	"io"
+)
+
+func main() {
+	hasher := md5.New()
+	b := []byte{}
+	io.WriteString(hasher, "test")
+	fmt.Printf("Result: %x\n", hasher.Sum(b))
+	fmt.Printf("Result: %d\n", hasher.Sum(b))
+}
+
+/* Output:
+Result: 098f6bcd4621d373cade4e832627b4f6
+Result: [9 143 107 205 70 33 211 115 202 222 78 131 38 39 180 246]
+*/