Switched getWork third output from difficulty to target

miner/remote_agent.go

 package miner
 
 import (
+    "math/big"
+
 	"github.com/ethereum/ethash"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
@@ -64,7 +66,12 @@ func (a *RemoteAgent) GetWork() [3]string {
 		res[0] = a.work.HashNoNonce().Hex()
 		seedHash, _ := ethash.GetSeedHash(a.currentWork.NumberU64())
 		res[1] = common.Bytes2Hex(seedHash)
-		res[2] = common.Bytes2Hex(a.work.Difficulty().Bytes())
+        n := new(big.Int)
+        n.SetInt64(1)
+        n.Lsh(n, 255)
+        n.Div(n, a.work.Difficulty())
+        n.Lsh(n, 1)
+        res[2] = common.Bytes2Hex(n.Bytes())
 	}
 
 	return res