Skip pip and just use apt-get install for configshell
and pexpect. While here, don't try to install these
on older Ubuntu systems, since they aren't available
there. We know they're available on 16.04, so skip
it for anything older than that.
Fixes issue #532.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I40c1659333cd80b54fb3e01ed036294aa5bf6ca3
Reviewed-on: https://review.gerrithub.io/436231
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Seth Howell <seth.howell5141@gmail.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>