change tabs to spaces

src/time.c

@@ -37,6 +37,6 @@ uint32_t getMillis() {
 }
 
 void ms_active_delay(uint16_t delay) {
-	uint32_t start = timestamp;
-	while (start + delay > timestamp);
+  uint32_t start = timestamp;
+  while (start + delay > timestamp);
 }