Fix style errors

Author: maropu

sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/CompressionCodecs.scala

@@ -20,9 +20,8 @@ package org.apache.spark.sql.execution.datasources
 import org.apache.hadoop.conf.Configuration
 import org.apache.hadoop.io.SequenceFile.CompressionType
 import org.apache.hadoop.io.compress.{BZip2Codec, DeflateCodec, GzipCodec, Lz4Codec, SnappyCodec}
-import org.apache.spark.util.ShortCompressionCodecNameMapper
 
-import org.apache.spark.util.Utils
+import org.apache.spark.util.{ShortCompressionCodecNameMapper, Utils}
 
 private[datasources] object CompressionCodecs {