HBASE-21102 - ServerCrashProcedure should select target server where no

other replicas exist for the current region (fix compilation issue)

hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.java

@@ -1562,6 +1562,7 @@ public abstract class BaseLoadBalancer implements LoadBalancer {
       sn = servers.get(i);
       if (!usedSNs.contains(sn)) {
         usedSNs.add(sn);
+      }
     } while (cluster.wouldLowerAvailability(regionInfo, sn)
         && iterations++ < maxIterations);
     if (iterations >= maxIterations) {