Formatting tweaks as part of fixing issue 1497

Marlin/temperature.cpp

@@ -370,16 +370,14 @@ int getHeaterPower(int heater) {
 
 #if HAS_AUTO_FAN
 
-void setExtruderAutoFanState(int pin, bool state)
-{
+void setExtruderAutoFanState(int pin, bool state) {
   unsigned char newFanSpeed = (state != 0) ? EXTRUDER_AUTO_FAN_SPEED : 0;
   // this idiom allows both digital and PWM fan outputs (see M42 handling).
   digitalWrite(pin, newFanSpeed);
   analogWrite(pin, newFanSpeed);
 }
 
-void checkExtruderAutoFans()
-{
+void checkExtruderAutoFans() {
   uint8_t fanState = 0;
 
   // which fan pins need to be turned on?      
@@ -442,7 +440,7 @@ void checkExtruderAutoFans()
   #endif
 }
 
-#endif // any extruder auto fan pins set
+#endif // HAS_AUTO_FAN
 
 //
 // Temperature Error Handlers