HAL style tweak

Marlin/src/HAL/HAL_DUE/HAL_Due.cpp

 
 void HAL_clear_reset_source(void) { }
 
-uint8_t HAL_get_reset_source (void) {
+uint8_t HAL_get_reset_source(void) {
   switch ((RSTC->RSTC_SR >> 8) & 7) {
     case 0: return RST_POWER_ON; break;
     case 1: return RST_BACKUP; break;

Marlin/src/HAL/HAL_DUE/HAL_Due.h

 #define HAL_IDLETASK 1
 #define HAL_INIT 1
 #ifdef __cplusplus
-extern "C" {
+  extern "C" {
 #endif
 void HAL_idletask(void);
 void HAL_init(void);
 char *dtostrf (double __val, signed char __width, unsigned char __prec, char *__s);
 #ifdef __cplusplus
-}
+  }
 #endif
 
 #endif // _HAL_DUE_H