Running as a non-privileged user, sudo git clone won't work
without the -E because it won't get the proxy settings, for those
using a proxy.
Change-Id: I8b471abf0066312b0eb63449d00a5647737c0136
Signed-off-by: paul luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/446162
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Seth Howell <seth.howell5141@gmail.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>