[mythtv] nuvexport shell bug

[Jim Perry]

Not sure if this is the correct list for the nuvexport module, but I ran 
into the following error:

fileparse(): need a valid pathname at /usr/local/bin/nuvexport line 23
BEGIN failed--compilation aborted at /usr/local/bin/nuvexport line 23, 
<STDIN> line 1.

Line #23 on the version I'm using is:
use lib dirname($ENV{'_'}), '/usr/share/nuvexport', 
'usr/local/share/nuvexport';

This is failing because I use tcsh and not bash.  In tcsh, $ENV{'_'} is 
undefined.

jim