The #ifdef to conditionally include <sys/socket.h> on BSD
is unnecessary. It is harmless to include the header on other
OS's. An extra include is better than an #ifdef.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>