Arc lint fixes

java/org/rocksdb/test/StatsCallbackMock.java

@@ -10,11 +10,11 @@ import org.rocksdb.*;
 public class StatsCallbackMock implements StatisticsCollectorCallback {
   public int tickerCallbackCount = 0;
   public int histCallbackCount = 0;
-        
+
   public void tickerCallback(TickerType tickerType, long tickerCount) {
     tickerCallbackCount++;
   }
-    
+
   public void histogramCallback(HistogramType histType,
       HistogramData histData) {
     histCallbackCount++;