adds retry handlers for %nonce and %certificate
?> ?=([%idx @ ~] spur)
(validate-domain:fec (slav %ud i.t.spur))
%directory directory:fec
+ %nonce ?> ?=(^ spur)
+ (nonce:fec t.spur)
%register register:fec
%renew renew:fec
%new-order new-order:fec
%finalize-order finalize-order:fec
%check-order check-order:fec
+ %certificate check-order:fec :: intentional
%get-authz get-authz:fec
%test-trial test-trial:fec
%finalize-trial finalize-trial:fec
