[FS#935] Modules should have default parameters as part of packaging

[LEDE Bugs]

The following task has a new comment added:

FS#935 - Modules should have default parameters as part of packaging
User who did this - Philip Prindeville (pprindeville)

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Figured the comma question out: use $(comma) instead.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=935#comment3196