Fix compile typo

code/espurna/pwm.c

@@ -445,5 +445,5 @@ get_pwm_version(void)
 void ICACHE_FLASH_ATTR
 set_pwm_debug_en(uint8_t print_en)
 {
-	UNUSED(print_en);
+	(void) print_en;
 }

code/espurna/sensors/ECH1560Sensor.h

@@ -127,7 +127,7 @@ class ECH1560Sensor : public BaseSensor {
 
         void ICACHE_RAM_ATTR handleInterrupt(unsigned char gpio) {
 
-            UNSUSED(gpio);
+            UNUSED(gpio);
 
             // if we are trying to find the sync-time (CLK goes high for 1-2ms)
             if (_dosync == false) {