This allows listening on the same port on IPv4 and IPv6 simultaneously;
otherwise, the second listen call would fail with an "address in use"
error.
Change-Id: I75010a2d1ec6559653e0bda40517dc13d8f5b9a5
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/401718
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
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