[pca] Pca command line expansion bug of some kind

[Martin Paul]

Hi Dave,

> Then I enter "pca -da missingrs"
> And get:
> 
> $ pca \342\200\223da missingrs
> ERROR: Unknown operand: -da

"pca -da missingrs" works fine for me. Are you sure you're using "-da"? 
Look at the control characters I'm quoting from your message.

> "pca -da missingrs" used to work.
> Has here been a change I didn't notice or is this a bug?

It should work. pca uses the Getopt::Long perl module for command line 
parsing, and it's been doing so for a long time. If it's not a (user 
:)-error on the command line, it could be a very old or broken 
installation of perl. But if it has worked before on that system, that 
would be strange.

Martin.