From c3c5f335e6caabbb354cc55ca251fabbfd4760b9 Mon Sep 17 00:00:00 2001
From: Delweng Zheng <delweng@gmail.com>
Date: Thu, 24 May 2018 21:21:10 +0800
Subject: [PATCH] trie: the hex length is even, (even+1)/2 == even/2

---
 trie/encoding.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/trie/encoding.go b/trie/encoding.go
index e96a786e40..221fa6d3aa 100644
--- a/trie/encoding.go
+++ b/trie/encoding.go
@@ -83,7 +83,7 @@ func hexToKeybytes(hex []byte) []byte {
 	if len(hex)&1 != 0 {
 		panic("can't convert hex key of odd length")
 	}
-	key := make([]byte, (len(hex)+1)/2)
+	key := make([]byte, len(hex)/2)
 	decodeNibbles(hex, key)
 	return key
 }