leak scan code read uninitialized data

_From [zhao...@google.com](https://code.google.com/u/106321947286816917100/) on August 28, 2012 19:05:43_

There are programs that perform leak scan type of operation, i.e. scan the memory in a range to find pointer like value.
DrM would raise a lot of uninitialized read errors.

The long term solution would be using annotation.
The short term solution is using suppression.

_Original issue: http://code.google.com/p/drmemory/issues/detail?id=993_