=item B<-config filename>
-this allows an alternative configuration file to be specified,
-this overrides the compile time filename or any specified in
-the B<OPENSSL_CONF> environment variable.
+this allows an alternative configuration file to be specified.
+Optional; for a description of the default value,
+see L<openssl(1)/COMMAND SUMMARY>.
=item B<-subj arg>
it is tolerated). See the description of the command line option B<-asn1-kludge>
for more information.
-=head1 ENVIRONMENT VARIABLES
-
-The variable B<OPENSSL_CONF> if defined allows an alternative configuration
-file location to be specified, it will be overridden by the B<-config> command
-line switch if it is present.
-
=head1 BUGS
OpenSSL's handling of T61Strings (aka TeletexStrings) is broken: it effectively