xdvi script - minor bug

[Gregory Borota]

Last line of the script reads:
xdvi.bin $NAMEOPT ${1+"$@"}

Should be:
exec xdvi.bin $NAMEOPT ${1+"$@"}

so that SIGNALS are sent to xdvi.bin and not xdvi script.
Whizzytex for example, needs to send SIGUSR1 to xdvi.bin
to ask it to reread the dvi file.

Thanks,
Greg