tree-wide: sort includes

Sort the includes accoding to the new coding style.

src/test/test-ratelimit.c

@@ -19,9 +19,9 @@
 
 #include <unistd.h>
 
+#include "macro.h"
 #include "ratelimit.h"
 #include "time-util.h"
-#include "macro.h"
 
 static void test_ratelimit_test(void) {
         int i;