[SQL] Kill dangerous trailing space in query string

MD5 of query strings in `createQueryTest` calls are used to generate golden files, leaving trailing spaces there can be really dangerous. Got bitten by this while working on #2616: my "smart" IDE automatically removed a trailing space and makes Jenkins fail.

(Really should add "no trailing space" to our coding style guidelines!)

Author: Cheng Lian <[email protected]>

Closes #2619 from liancheng/kill-trailing-space and squashes the following commits:

034f119 [Cheng Lian] Kill dangerous trailing space in query string

Author: liancheng

sql/hive/src/test/resources/golden/Cast Timestamp to Timestamp in UDF-0-66952a3949d7544716fd1a675498b1fa renamed to sql/hive/src/test/resources/golden/Cast Timestamp to Timestamp in UDF-0-db6d4503454e4dbb9edcbab9a8718d7f

@@ -164,7 +164,7 @@ class HiveQuerySuite extends HiveComparisonTest {
 
   createQueryTest("Cast Timestamp to Timestamp in UDF",
     """
-       | SELECT DATEDIFF(CAST(value AS timestamp), CAST('2002-03-21 00:00:00' AS timestamp)) 
+       | SELECT DATEDIFF(CAST(value AS timestamp), CAST('2002-03-21 00:00:00' AS timestamp))
        | FROM src LIMIT 1
     """.stripMargin)