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>

src/go/docker/scripts/init-shard.sh

@@ -1,4 +1,4 @@
-#!/bin/bash 
+#!/bin/bash
 
 mongodb1=`getent hosts ${MONGOS} | awk '{ print $1 }'`
 

src/go/docker/scripts/setup.sh

@@ -1,4 +1,4 @@
-#!/bin/bash 
+#!/bin/bash
 
 mongodb1=`getent hosts ${MONGO1} | awk '{ print $1 }'`
 mongodb2=`getent hosts ${MONGO2} | awk '{ print $1 }'`