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/5.7/sys/procedures/ps_setup_save.sql

@@ -24,11 +24,11 @@ CREATE DEFINER='root'@'localhost' PROCEDURE ps_setup_save (
              Description
              -----------
 
-             Saves the current configuration of Performance Schema, 
-             so that you can alter the setup for debugging purposes, 
+             Saves the current configuration of Performance Schema,
+             so that you can alter the setup for debugging purposes,
              but restore it to a previous state.
 
-             Use the companion procedure - ps_setup_reload_saved(), to 
+             Use the companion procedure - ps_setup_reload_saved(), to
              restore the saved config.
 
              Requires the SUPER privilege for "SET sql_log_bin = 0;".
@@ -44,7 +44,7 @@ CREATE DEFINER='root'@'localhost' PROCEDURE ps_setup_save (
              mysql> CALL sys.ps_setup_save();
              Query OK, 0 rows affected (0.08 sec)
 
-             mysql> UPDATE performance_schema.setup_instruments 
+             mysql> UPDATE performance_schema.setup_instruments
                  ->    SET enabled = \'YES\', timed = \'YES\';
              Query OK, 547 rows affected (0.40 sec)
              Rows matched: 784  Changed: 547  Warnings: 0