[daip] UVPLT doesn't plot all subarrays as advertised

[Michael Bietenholz]

31DEC00 AIPS; (about a month old; as usual apologies if this is
already fixed)

UVPLT doesn't plot all the subarrays with SUBAR = 0.

The problem seems to be that subroutine SCAL resets the variable
SUBARR to be the last subarray as it loops through the subarrays, and
then the rest of the program only plots the last one.

            michael b