fix style

Author: cfmcgrady

externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/operation/ExecuteStatement.scala

@@ -21,13 +21,13 @@ import java.util.concurrent.RejectedExecutionException
 
 import scala.collection.JavaConverters._
 
+import org.apache.spark.rdd.RDD
 import org.apache.spark.sql.DataFrame
 import org.apache.spark.sql.execution.SQLExecution
 import org.apache.spark.sql.kyuubi.SparkDatasetHelper
 import org.apache.spark.sql.types._
-import org.apache.kyuubi.{KyuubiSQLException, Logging}
-import org.apache.spark.rdd.RDD
 
+import org.apache.kyuubi.{KyuubiSQLException, Logging}
 import org.apache.kyuubi.config.KyuubiConf.OPERATION_RESULT_MAX_ROWS
 import org.apache.kyuubi.engine.spark.KyuubiSparkUtil._
 import org.apache.kyuubi.operation.{ArrayFetchIterator, FetchIterator, IterableFetchIterator, OperationState}