keep setwork log msg within 80-columns

libethcore/EthashCUDAMiner.cpp

@@ -141,7 +141,7 @@ void EthashCUDAMiner::workLoop()
 	// take local copy of work since it may end up being overwritten by kickOff/pause.
 	try {
 		WorkPackage w = work();
-		cnote << "set work; seed: " << "#" + w.seedHash.hex().substr(0, 8) + ", target: " << "#" + w.boundary.hex().substr(0, 16);
+		cnote << "set work; seed: " << "#" + w.seedHash.hex().substr(0, 8) + ", target: " << "#" + w.boundary.hex().substr(0, 12);
 		if (!m_miner || m_minerSeed != w.seedHash)
 		{
 			unsigned device = s_devices[index()] > -1 ? s_devices[index()] : index();

libethcore/EthashGPUMiner.cpp

@@ -139,7 +139,7 @@ void EthashGPUMiner::workLoop()
 	// take local copy of work since it may end up being overwritten by kickOff/pause.
 	try {
 		WorkPackage w = work();
-		cnote << "set work; seed: " << "#" + w.seedHash.hex().substr(0, 8) + ", target: " << "#" + w.boundary.hex().substr(0, 16);
+		cnote << "set work; seed: " << "#" + w.seedHash.hex().substr(0, 8) + ", target: " << "#" + w.boundary.hex().substr(0, 12);
 		if (!m_miner || m_minerSeed != w.seedHash)
 		{
 			if (s_dagLoadMode == DAG_LOAD_MODE_SEQUENTIAL)