[FS#537] OpenVPN init.d-Script append_params missing value

[LEDE Bugs]

The following task has a new comment added:

FS#537 - OpenVPN init.d-Script append_params missing value
User who did this - Lajos (lalamper)

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I can confirm that this directive is missing. It would be nice to have.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=537#comment1959