Reverted changes in rip-dvd's command line parsing code.
Not sure why I thought it needed to be changed in the first place.  In
any case, $BASH_ARGV is not equivalent to $@.
Fixed chewtoy's broken command line parsing.
As with rip-dvd, $BASH_ARGV is the wrong variable to use.  Pass the
script's $@ to the parsing function and the function's $@ will be set
accordingly.