The systems root keychain contains well know root certificates,
yet is non-modifiable. As such, internal CA certificates (both root
and intermediate) tend to get installed into the systems keychain
in the context of an private organization. Not loading certs
from this keychain results in differing behavior from other tools
(e.g., openssl, curl, etc.). This commit changes to that so that
ssl in conjunction with public key just works in such environments.