From 15765517417001a8dffc1180d7621b4284f4443e Mon Sep 17 00:00:00 2001
From: Taylor Gerring <taylor.gerring@gmail.com>
Date: Wed, 4 Mar 2015 14:13:31 -0600
Subject: [PATCH] Output 0x0 instead of 0x

---
 rpc/util.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/rpc/util.go b/rpc/util.go
index 3e8ca3fef..69c7b629f 100644
--- a/rpc/util.go
+++ b/rpc/util.go
@@ -63,7 +63,12 @@ func (self JsonWrapper) ParseRequestBody(req *http.Request) (RpcRequest, error)
 }
 
 func toHex(b []byte) string {
-	return "0x" + ethutil.Bytes2Hex(b)
+	hex := ethutil.Bytes2Hex(b)
+	// Prefer output of "0x0" instead of "0x"
+	if len(hex) == 0 {
+		hex = "0"
+	}
+	return "0x" + hex
 }
 func fromHex(s string) []byte {
 	if len(s) > 1 {