fix

src/sinkSender.c

@@ -1,11 +1,13 @@
 #include <stdint.h>
 #include <string.h>
+#include <stdlib.h>
+#include <libconfig.h>
+
 #include "sinkSender.h"
 #include "logging.h"
 #include "led.h"
 #include "sinkStruct.h"
 #include "sha256.h"
-#include "libconfig.h"
 
 
 const char SINKSERVER_KEY[] = "sinkServer";