[MINOR][SQL] Fix an error message about inserting into bucketed tables

## What changes were proposed in this pull request?

This replaces `Sparkcurrently` to `Spark currently` in the following error message.

```scala
scala> sql("insert into t2 select * from v1")
org.apache.spark.sql.AnalysisException: Output Hive table `default`.`t2`
is bucketed but Sparkcurrently does NOT populate bucketed ...
```

## How was this patch tested?

Manual.

Author: Dongjoon Hyun <[email protected]>

Closes #20617 from dongjoon-hyun/SPARK-ERROR-MSG.

(cherry picked from commit 6968c3c)
Signed-off-by: gatorsmile <[email protected]>

Author: dongjoon-hyun

sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/InsertIntoHiveTable.scala

@@ -172,7 +172,7 @@ case class InsertIntoHiveTable(
         val enforceBucketingConfig = "hive.enforce.bucketing"
         val enforceSortingConfig = "hive.enforce.sorting"
 
-        val message = s"Output Hive table ${table.identifier} is bucketed but Spark" +
+        val message = s"Output Hive table ${table.identifier} is bucketed but Spark " +
           "currently does NOT populate bucketed output which is compatible with Hive."
 
         if (hadoopConf.get(enforceBucketingConfig, "true").toBoolean ||