Kill cxn only if using a db in Sandbox::wipe_clean(). Fix pt-duplicate-key-checker/basics.t for 5.0. Make pt-table-sync/lock_and_rename.t more stable.

t/pt-duplicate-key-checker/basics.t

@@ -102,6 +102,7 @@ ok(
    no_diff(
       sub { pt_duplicate_key_checker::main(@args, qw(-d test)) },
       "$sample/bug-894140.txt",
+      sed => [ "-e 's/  */ /g'" ],
     ),
    "Bug 894140"
 );

t/pt-duplicate-key-checker/samples/bug-894140.txt

@@ -1,29 +1,29 @@
 # ########################################################################
-# test.bug_894140                                                         
+# test.bug_894140 
 # ########################################################################
 
 # row_id is a duplicate of PRIMARY
 # Key definitions:
-#   UNIQUE KEY `row_id` (`row_id`),
-#   PRIMARY KEY (`row_id`),
+# UNIQUE KEY `row_id` (`row_id`),
+# PRIMARY KEY (`row_id`),
 # Column types:
-#	  `row_id` bigint(20) not null auto_increment
+#	 `row_id` bigint(20) not null auto_increment
 # To remove this duplicate index, execute:
 ALTER TABLE `test`.`bug_894140` DROP INDEX `row_id`;
 
 # player_id_2 is a duplicate of player_id
 # Key definitions:
-#   KEY `player_id_2` (`player_id`)
-#   UNIQUE KEY `player_id` (`player_id`),
+# KEY `player_id_2` (`player_id`)
+# UNIQUE KEY `player_id` (`player_id`),
 # Column types:
-#	  `player_id` bigint(20) default null
+#	 `player_id` bigint(20) default null
 # To remove this duplicate index, execute:
 ALTER TABLE `test`.`bug_894140` DROP INDEX `player_id_2`;
 
 # ########################################################################
-# Summary of indexes                                                      
+# Summary of indexes 
 # ########################################################################
 
-# Size Duplicate Indexes   17
-# Total Duplicate Indexes  2
-# Total Indexes            4
+# Size Duplicate Indexes 17
+# Total Duplicate Indexes 2
+# Total Indexes 4