Tidy logging semantics

[Adam Doligalski]

Hello,

CFengine is a great piece of software... It can do nearly everything I 
need, bug last time I've encountered some difficulties with 'tidy' section.

When I'm trying to use tidy with inform set on, it reported about 
everything: what it deleted and he couldn't delete. And that surprised 
me: even if there was not time to delete some directory - it usually 
reported something like this:

cfengine:mars: Non-empty directory /mnt/galaxy-tmp/tmp/bea, skipping..
cfengine:mars: Non-empty directory /mnt/galaxy-tmp/tmp/adamd, skipping..

I've took a look into tidy.c source file. And I think that the semantics 
of logging subsystem in tidy lacks some important messages.

Firstly it checks directories. And if it is direcotry and is not empty 
(it doesn't matter if there was need to unlink it) and prints messages 
mentioned above.

My proposal is to switch this information to be shown at 'verbose' level.

Main target of that is that some people (like me) would be like to be 
informed about deleting of some files or directories. So information 
about skipping directories that tidy shouldn't even try to delete is a 
bit noisy.

I've patched it and it works fine.

Kind regards,
        Adam