Formatting fixes

Adafruit_SPIDevice.cpp

@@ -112,6 +112,7 @@ bool Adafruit_SPIDevice::begin(void) {
 void Adafruit_SPIDevice::transfer(uint8_t *buffer, size_t len) {
   if (_spi) {
     // hardware SPI is easy
+
 #ifdef SPARK
     // Spark uses asynchronous DMA for multi-byte transfers; 
     // just use the single-byte method for sync transfers.