Fix indentation (code formatting...)

src/main/java/redis/clients/jedis/PipelineBlock.java

@@ -7,9 +7,9 @@ package redis.clients.jedis;
  * @see https://github.com/xetorthio/jedis/pull/498
  */
 public abstract class PipelineBlock extends Pipeline {
-	// For shadowing
-	@SuppressWarnings("unused")
-	private Client client;	
-	
+    // For shadowing
+    @SuppressWarnings("unused")
+    private Client client;
+
     public abstract void execute();
 }