PHP 7.4 Compat?

[turtlepod]

Expected/Desired Behavior

No PHP 7.4 Warning

Actual Behavior

How does the plugin/feature/module currently work.

FILE: ...press\wp-content\plugins\edit-flow\modules\calendar\calendar.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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 1217 | WARNING | Passing the $glue and $pieces parameters in reverse
      |         | order to join has been deprecated since PHP 7.4;
      |         | $glue should be the first parameter and $pieces the
      |         | second
----------------------------------------------------------------------


FILE: ...-content\plugins\edit-flow\modules\story-budget\story-budget.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
----------------------------------------------------------------------
 414 | WARNING | Passing the $glue and $pieces parameters in reverse
     |         | order to join has been deprecated since PHP 7.4;
     |         | $glue should be the first parameter and $pieces the
     |         | second
----------------------------------------------------------------------

Steps to Reproduce the Problem

Test with PHP 7.4

(Optional) Additional notes

Any other relevant information to help with debugging/implementation.