Some more gpuN instead of gpu/N

Extend commit ff4dbfbedbe2a6ec9f1d1f682d6cac259d63d359

Author: StefanOberhumer

libethcore/Miner.h

@@ -235,7 +235,7 @@ class Miner: public Worker
 	void update_temperature(unsigned temperature)
 	{
 		/*
-		 cnote << "Setting temp" << temperature << " for gpu/" << index <<
+		 cnote << "Setting temp" << temperature << " for gpu" << index <<
 		          " tstop=" << farm.get_tstop() << " tstart=" << farm.get_tstart();
 		*/
 		bool _wait_for_tstart_temp = m_wait_for_tstart_temp.load(std::memory_order_relaxed);
@@ -244,14 +244,14 @@ class Miner: public Worker
 			unsigned tstop = farm.get_tstop();
 			if (tstop && temperature >= tstop)
 			{
-				cwarn << "Pause mining on gpu/" << index << " : temperature " << temperature << " is above --tstop " << tstop;
+				cwarn << "Pause mining on gpu" << index << " : temperature " << temperature << " is above --tstop " << tstop;
 				m_wait_for_tstart_temp.store(true, std::memory_order_relaxed);
 			}
 		} else {
 			unsigned tstart = farm.get_tstart();
 			if (tstart && temperature <= tstart)
 			{
-				cnote << "(Re)starting mining on gpu/" << index << " : temperature " << temperature << " is now below --tstart " << tstart;
+				cnote << "(Re)starting mining on gpu" << index << " : temperature " << temperature << " is now below --tstart " << tstart;
 				m_wait_for_tstart_temp.store(false, std::memory_order_relaxed);
 			}
 		}