[FS#342] iptables v1.4.21: can't initialize iptables table raw

[LEDE Bugs]

The following task has a new comment added:

FS#342 - iptables v1.4.21: can't initialize iptables table raw
User who did this - dissent1 (dissent1)

----------
I suspect it's luci-app-firewall that touches it. This msg appears right after opening firewall tab in luci.
----------

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=342#comment1056