=item B<-keyout> I<filename>
This gives the filename to write any private key to that has been newly created
-or read from B<-key>.
-If the B<-keyout> option is not given the filename specified in the
-configuration file with the B<default_keyfile> option is used, if present.
-If a new key is generated and no filename is specified
-the key is written to standard output.
+or read from B<-key>. If neither the B<-keyout> option nor the B<-key> option
+are given then the filename specified in the configuration file with the
+B<default_keyfile> option is used, if present. Thus, if you want to write the
+private key and the B<-key> option is provided, you should provide the
+B<-keyout> option explicitly. If a new key is generated and no filename is
+specified the key is written to standard output.
=item B<-noenc>