C API example code.
+=item C<extratests>
+
+Extra tests. These are not run by default because they require
+special tools or configuration.
+
=item C<fish>
L<guestfish(1)>, the command-line shell, and various shell scripts
L<virt-tar-in(1)>,
L<virt-tar-out(1)>,
L<virt-win-reg(1)>,
+L<guestfs-testing(1)>,
L<qemu(1)>,
L<febootstrap(1)>,
L<febootstrap-supermin-helper(8)>,