From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <shemming@brocade.com>
Subject: Re: [PATCH iproute2] ss: return -1 if an unrecognized option was
 given
Date: Sun, 18 Oct 2015 21:45:45 -0700
Message-ID: <20151018214545.74983d8c@xeon-e3>
References: <1444935676-10068-1-git-send-email-phil@nwl.cc>
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To: Phil Sutter <phil@nwl.cc>
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On Thu, 15 Oct 2015 21:01:16 +0200
Phil Sutter <phil@nwl.cc> wrote:

> When getopt_long encounters an option which has not been registered, it
> returns '?'. React upon that and call usage() instead of help() so ss
> returns with a non-zero exit status.
> 
> Signed-off-by: Phil Sutter <phil@nwl.cc>

Applied