Adding an astyle make target and running everything through it

arduino/msaqsg/ch02/LEDSwitch/LEDSwitch.ino

@@ -2,53 +2,53 @@ const unsigned int LED_PIN = 13;
 const unsigned int BAUD_RATE = 9600;
 
 void ledOn() {
-  digitalWrite(LED_PIN, HIGH);
-  Serial.println("LED on");
+    digitalWrite(LED_PIN, HIGH);
+    Serial.println("LED on");
 }
 
 void ledOff() {
-  digitalWrite(LED_PIN, LOW);
-  Serial.println("LED off");
+    digitalWrite(LED_PIN, LOW);
+    Serial.println("LED off");
 }
 
 void ledBlink() {
-  Serial.println("BLINKY TIME");
-  for (int i = 0; i < 5; i++) {
-    ledOn();
-    delay(100);
-    ledOff();
-    delay(100);
-  }
+    Serial.println("BLINKY TIME");
+    for (int i = 0; i < 5; i++) {
+        ledOn();
+        delay(100);
+        ledOff();
+        delay(100);
+    }
 }
 
 void handleInput() {
-  int c = Serial.read();
+    int c = Serial.read();
 
-  switch (c) {
-  case '1':
-    ledOn();
-    break;
-  case '2':
-    ledOff();
-    break;
-  case '3':
-    ledBlink();
-    break;
-  default:
-    Serial.print("Unknown command: ");
-    Serial.println(c);
-  }
+    switch (c) {
+    case '1':
+        ledOn();
+        break;
+    case '2':
+        ledOff();
+        break;
+    case '3':
+        ledBlink();
+        break;
+    default:
+        Serial.print("Unknown command: ");
+        Serial.println(c);
+    }
 }
 
 void setup() {
-  pinMode(LED_PIN, OUTPUT);
-  Serial.begin(BAUD_RATE);
+    pinMode(LED_PIN, OUTPUT);
+    Serial.begin(BAUD_RATE);
 }
 
 void loop() {
-  if (Serial.available() <= 0) {
-    return;
-  }
+    if (Serial.available() <= 0) {
+        return;
+    }
 
-  handleInput();
+    handleInput();
 }