client: Fixed example_libxtreemfs since a test version was accidentally...

client: Fixed example_libxtreemfs since a test version was accidentally committed as part of revision 3016.

git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@3170 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534