Fix OPA install script to follow redirects
Fix OPA install script to follow redirects

Enable verbose logging on curl because command is failing in Travis
but not locally.

Signed-off-by: Torin Sandall <933af5bec0bc58056526d55ca6c7b45fcf14cc48@gmail.com>

tsandall/contrib,open-policy-agent/contrib,open-policy-agent/contrib,open-policy-agent/contrib,open-policy-agent/contrib,tsandall/contrib,open-policy-agent/contrib,tsandall/contrib,tsandall/contrib,tsandall/contrib,open-policy-agent/contrib,tsandall/contrib,open-policy-agent/contrib,open-policy-agent/contrib,tsandall/contrib