DOCSP-45806 Update typo on upgrade docs OM-v6.0-backport (581) (#592)

# Backport

This will backport the following commits from `master` to `v6.0`:
- [DOCSP-45806 Update typo on upgrade docs OM
(#581)](10gen/docs-ops-manager#581)

<!--- Backport version: 9.6.1 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

Author: amalhotra-mdb

source/includes/steps-upgrade-on-prem-with-rpm-packages.yaml

@@ -68,7 +68,7 @@ content: |
      .. code-block:: sh
 
         sudo mv /etc/init.d/mongodb-mms /etc/init.d/mongodb-mms-5.0
-        sudo mv /etc/init.d/mongodb-mms-backup-daemon /etc/init.d/        mongodb-mms-backup-daemon-5.0
+        sudo mv /etc/init.d/mongodb-mms-backup-daemon /etc/init.d/mongodb-mms-backup-daemon-5.0
 
   #. Issue the following commands to symbolically link the |onprem|
      files to their ``init`` files: