We don't need the strip_header() function, to load an unknown
x509 certificate, load_unknown_x509_certificate() should be used.
Reviewed-By: Tibor Dudlak <tdudlak@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Load the certificate from a file specified in the first argument. Raw
certificate value can be specified using --certificate.
https://pagure.io/freeipa/issue/6646
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>