[pca] Logging

[Martin Paul]

> All things are opened to debate.

Sure. pca wouldn't be what it is without the enormous amount of user 
feedback.

>   I just wanted a little more logging.  Not exactly what was in sunucLog.

Can you give an example of what you would like to see in the logs? I 
just can't think of anything else to log for a successful patch install. 
For a failed patch install, I could only log full patchadd output (no 
way to extract just useful messages), and that can be 100s of lines for 
e.g. a kernel patch.

Martin.