Remove trailing spaces (#665)

* Remove trailing spaces

* PR-665 -  Remove trailing spaces

- Updated not stable test t/pt-online-schema-change/preserve_triggers.t
- Updated utilities in bin directory

* PR-665 -  Remove trailing spaces

- Fixed typos

* PR-665 -  Remove trailing spaces

- Fixed typos

---------

Co-authored-by: Sveta Smirnova <sveta.smirnova@percona.com>

sandbox/servers/5.6/sys/procedures/ps_setup_show_enabled.sql

@@ -119,8 +119,8 @@ BEGIN
      WHERE enabled = 'YES';
 
     IF (in_show_threads) THEN
-        SELECT IF(name = 'thread/sql/one_connection', 
-                  CONCAT(processlist_user, '@', processlist_host), 
+        SELECT IF(name = 'thread/sql/one_connection',
+                  CONCAT(processlist_user, '@', processlist_host),
                   REPLACE(name, 'thread/', '')) AS enabled_threads,
         TYPE AS thread_type
           FROM performance_schema.threads