Running performance/logging.sh after recent commit

[Curt Arnold]

I just rebuilt log4cxx on Linux to sanity check yesterday's changes.  
That went okay, but when I ran performance/logging.sh, I got messages 
like:

Results: performance/logging.sh: line 1: ./logging: No such file or 
directory
performance/logging.sh: line 43: [: -lt: unary operator expected

I don't have time to check it tonight and am not terribly familiar with 
the performance testing code, but I think that I was able to run it a 
few nights ago.