small formatting, indentation and comment fixes

- contains zero code changes

src/rpcblockchain.cpp

@@ -3,10 +3,10 @@
 // Distributed under the MIT/X11 software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include "rpcserver.h"
-#include "main.h"
-#include "sync.h"
 #include "checkpoints.h"
+#include "main.h"
+#include "rpcserver.h"
+#include "sync.h"
 
 #include <stdint.h>