client: Added TODO note to a block of code which is an example for the use of...

client: Added TODO note to a block of code which is an example for the use of pointers where scoped_ptr and their swap() method should be used.

git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@3026 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534