renamed originalUdfs in TestHive to originalUDFs

Author: BenFradet

sql/hive/src/main/scala/org/apache/spark/sql/hive/test/TestHive.scala

@@ -391,7 +391,7 @@ class TestHiveContext(sc: SparkContext) extends HiveContext(sc) {
    * Records the UDFs present when the server starts, so we can delete ones that are created by
    * tests.
    */
-  protected val originalUdfs: JavaSet[String] = FunctionRegistry.getFunctionNames
+  protected val originalUDFs: JavaSet[String] = FunctionRegistry.getFunctionNames
 
   /**
    * Resets the test instance by deleting any tables that have been created.
@@ -410,7 +410,7 @@ class TestHiveContext(sc: SparkContext) extends HiveContext(sc) {
       catalog.client.reset()
       catalog.unregisterAllTables()
 
-      FunctionRegistry.getFunctionNames.filterNot(originalUdfs.contains(_)).foreach { udfName =>
+      FunctionRegistry.getFunctionNames.filterNot(originalUDFs.contains(_)).foreach { udfName =>
         FunctionRegistry.unregisterTemporaryUDF(udfName)
       }