[SPARK-2700] [SQL] fixed styling issue

Author: chutium

sql/core/src/main/scala/org/apache/spark/sql/parquet/ParquetTypes.scala

@@ -373,10 +373,10 @@ private[parquet] object ParquetTypesConverter extends Logging {
     }
     ParquetRelation.enableLogForwarding()
 
-    val children = fs.listStatus(path).filterNot(
-      status => (status.getPath.getName.charAt(0) == '.' ||
-                 status.getPath.getName == FileOutputCommitter.SUCCEEDED_FILE_NAME)
-    )
+    val children = fs.listStatus(path).filterNot { status =>
+      val name = status.getPath.getName
+      name(0) == '.' || name == FileOutputCommitter.SUCCEEDED_FILE_NAME
+    }
 
     // NOTE (lian): Parquet "_metadata" file can be very slow if the file consists of lots of row
     // groups. Since Parquet schema is replicated among all row groups, we only need to touch a