patch for iproute2

Hello iproute2 maintainer.

(Sorry, I don't know your name)

I recently noticed a discrepancy: the internal documentation for the ip
command says that an *RTT* value can be sufficed with "s" (second) or "ms"
(millisecond), but in practice no suffix of any kind is accepted.

I found that that commit 697ac63905cb5ca5389cd840462ee9868123b77f to
git://git.kernel.org/pub/scm/network/iproute2/iproute2.git caused this
regression; it was over-zealous in disallowing non-digits in *all* contexts
where a number is expected.

As far as I can tell, this does not have any kernel-related impact, merely
it affects what arguments are accepted by the "ip" command.

I have a suitable patch for fixing this; what is the procedure for
submitting it?

-Martin