update stream_buffer.h

Author: feilipu

src/stream_buffer.h

@@ -51,8 +51,8 @@
 #ifndef STREAM_BUFFER_H
 #define STREAM_BUFFER_H
 
-#ifndef INC_FREERTOS_H
-    #error "include FreeRTOS.h must appear in source files before include stream_buffer.h"
+#ifndef INC_ARDUINO_FREERTOS_H
+    #error "include Arduino_FreeRTOS.h must appear in source files before include stream_buffer.h"
 #endif
 
 #if defined( __cplusplus )