+.B import-key [NAME[:PORT]]
+Import a pem-encoded ssh secret host key, from stdin. NAME[:PORT] is
+used to specify the hostname (and port) used in the user ID of the new
+OpenPGP key. If NAME is not specified, then the system
+fully-qualified domain name will be used (ie. `hostname -f'). If PORT
+is not specified, the no port is added to the user ID, which means
+port 22 is assumed. `i' may be used in place of `import-key'.
+.TP