[FS#31] firewall3 fails to reload iptables policy extension

[LEDE Bugs]

The following task has a new comment added:

FS#31 - firewall3 fails to reload iptables policy extension
User who did this - Jo-Philipp Wich (jow-)

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Fixed in master with http://git.lede-project.org/113544d
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=31#comment797