=item B<-untrusted file>
A B<file> of additional untrusted certificates (intermediate issuer CAs) used
-to constuct a certificate chain from the subject certificate to a trust-anchor.
+to construct a certificate chain from the subject certificate to a trust-anchor.
The B<file> should contain one or more certificates in PEM format.
This option can be specified more than once to include untrusted certiificates
from multiple B<files>.