[daip] PCAL possibly broken for CPARM(1)=1

[Michael Bietenholz]

  I just tried running PCAL (31DEC01) and averaging the IFs, and I
noticed the solutions were exactly the same as the IF=1 solutions when
NOT averaging the IFs.  This seems unlikely to be correct.

I suspect PCAL actually only uses the IF=1 data when you tell it to
average the IFs, and I couldn't see in a brief look at the program
where it did actually average over IFs.  Apologies if I'm wrong on
this...

              michael b