[HOTFIX] Fix Scala style checks

## What changes were proposed in this pull request?

This PR fixes a style that broke the build.

## How was this patch tested?

Manually tested.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #20065 from HyukjinKwon/minor-style.

examples/src/main/scala/org/apache/spark/examples/sql/hive/SparkHiveExample.scala

@@ -135,7 +135,7 @@ object SparkHiveExample {
     hiveTableDF.coalesce(10).write.mode(SaveMode.Overwrite)
       .partitionBy("key").parquet(hiveExternalTableLocation)
     // $example off:spark_hive$
-    
+
     spark.stop()
   }
 }