[daip] UVCOP anomaly

[Eric Greisen]

Michael Bietenholz writes:
 >   I just noticed that UVCOP (31DEC01), on a single source file,
 > doesn't apply entries in the FG table which have SOURCE=1 (for example
 > those generated by QUACK).  It does apply entries with SOURCE=0.
 > Other programs (e.g. LISTR, TVFLG) deal with SOURCE=1 in the FG table
 > correctly.

I have added the test that requires the current source to also be
non-zero - so all sources apply to the single source.  This is the
logic in the rest of AIPS so I hope it is ok.

Eric