new endless loop

Signed-off-by: Peter Siegmund <peter@rdkr.com>

ePaper-ESP-IDF/main/main.cpp

@@ -16,8 +16,8 @@ void setup(void) {
 
   if (!framebuffer) {
     printf("alloc memory failed !!!");
-    while (1)
-      ;
+    while (1) {
+    }
   }
 
   memset(framebuffer, 0xFF, EPD_WIDTH * EPD_HEIGHT / 2);