mc 4.6.0 subshell fix for FreeBSD 5.x

[Nerijus Baliunas]

On Sun, 26 Oct 2003 17:26:21 -0500 (EST) Pavel Roskin <proski at gnu.org> wrote:

> Good software just works from the beginning.  Since the subshell
> functionality is considered important, maybe mc should try supported
> subshells before falling back to disabling subshell.

Would be very nice - I know some FreeBSD admins, who don't use
mc only because subshell does not work (now I know the reason).

Regards,
Nerijus