[FS#1425] iproute2: tc qdisc produces incorrect output

[LEDE Bugs]

The following task has a new comment added:

FS#1425 - iproute2: tc qdisc produces incorrect output
User who did this - Kevin Darbyshire-Bryant (kdarbyshirebryant)

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A suitable fix, also sent to upstream https://patchwork.ozlabs.org/patch/887411/
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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1425#comment4494