On 404 if there is no actual body, return orig err. (#4262)
On 404 if there is no actual body, return orig err. (#4262)

This keeps better backwards compat; we'll only swallow the original
error if there's actually other data or warnings returned.
Aloomaio/vault,hartsock/vault,quixoten/vault,mgk/vault,joelthompson/vault,kingland/vault,rnaveiras/vault,hartsock/vault,mgk/vault,quixoten/vault,kingland/vault,kingland/vault,hartsock/vault,Aloomaio/vault,hashicorp/vault,hashicorp/vault,kingland/vault,hashicorp/vault,rnaveiras/vault,hashicorp/vault,rnaveiras/vault,joelthompson/vault,Aloomaio/vault,joelthompson/vault,mgk/vault,hashicorp/vault,hartsock/vault,quixoten/vault,Aloomaio/vault,hartsock/vault,quixoten/vault,kingland/vault,joelthompson/vault,rnaveiras/vault,hashicorp/vault,mgk/vault,rnaveiras/vault