Fix warnings on upgrade when non-core message templates exist

[eileenmcnaughton]

Overview

Fix warnings on upgrade when non-core message templates exist

Before

Warnings on upgrade for non-core message templates

file_get_contents(/path/sites/all/modules/civicrm/xml/templates/message_templates/eoy_thank_you_html.tpl):[warning]
failed to open stream: No such file or directory

After

Add a pre-check to avoid the warnings

Technical Details

Comments

@demeritcowboy

[civibot]

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[demeritcowboy]

Ah that makes sense. Thanks.
Might also be the cause of this reported yesterday: https://civicrm.stackexchange.com/questions/42658/unable-to-run-civi-database-upgrades-through-ui No probably not if they are upgrading to 5.53.

[demeritcowboy]

style issue