Clean up.

helpers.go

@@ -23,7 +23,6 @@ func readFile(path string) (*bytes.Buffer, error) {
 	if err != nil {
 		return nil, err
 	}
-
 	return buffer, nil
 }
 
@@ -38,21 +37,19 @@ func getRpad(messageLength int) string {
 }
 
 func getID() string {
-	b := make([]byte, 12)
-	_, err := rand.Read(b)
+	id := make([]byte, 12)
+	_, err := rand.Read(id)
 	if err != nil {
 		log.Fatal(err)
 	}
-	id := fmt.Sprintf("%x-%x-%x", b[0:4], b[4:8], b[8:])
-	return id
+	return fmt.Sprintf("%x-%x-%x", id[0:4], id[4:8], id[8:])
 }
 
 func getShortID() string {
-	b := make([]byte, 4)
-	_, err := rand.Read(b)
+	id := make([]byte, 4)
+	_, err := rand.Read(id)
 	if err != nil {
 		log.Fatal(err)
 	}
-	id := fmt.Sprintf("%x", b[0:4])
-	return id
+	return fmt.Sprintf("%x", id[0:4])
 }