[SPARK-21721][SQL][FOLLOWUP] Clear FileSystem deleteOnExit cache when paths are successfully removed

## What changes were proposed in this pull request?

Fix a typo in test.

## How was this patch tested?

Jenkins tests.

Author: Liang-Chi Hsieh <[email protected]>

Closes #19005 from viirya/SPARK-21721-followup.

Author: viirya

sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLQuerySuite.scala

@@ -2023,18 +2023,19 @@ class SQLQuerySuite extends QueryTest with SQLTestUtils with TestHiveSingleton {
   }
 
   test("SPARK-21721: Clear FileSystem deleterOnExit cache if path is successfully removed") {
-    withTable("test21721") {
+    val table = "test21721"
+    withTable(table) {
       val deleteOnExitField = classOf[FileSystem].getDeclaredField("deleteOnExit")
       deleteOnExitField.setAccessible(true)
 
       val fs = FileSystem.get(spark.sparkContext.hadoopConfiguration)
       val setOfPath = deleteOnExitField.get(fs).asInstanceOf[Set[Path]]
 
       val testData = sparkContext.parallelize(1 to 10).map(i => TestData(i, i.toString)).toDF()
-      sql("CREATE TABLE test21721 (key INT, value STRING)")
+      sql(s"CREATE TABLE $table (key INT, value STRING)")
       val pathSizeToDeleteOnExit = setOfPath.size()
 
-      (0 to 10).foreach(_ => testData.write.mode(SaveMode.Append).insertInto("test1"))
+      (0 to 10).foreach(_ => testData.write.mode(SaveMode.Append).insertInto(table))
 
       assert(setOfPath.size() == pathSizeToDeleteOnExit)
     }