Fix unrelated compilation warning highlighted by Mac OS X 10.9 after last commit. https://tracker.physiomeproject.org/show_bug.cgi?id=3490
Fix unrelated compilation warning highlighted by Mac OS X 10.9 after last commit. https://tracker.physiomeproject.org/show_bug.cgi?id=3490

git-svn-id: b9baf8c2d14a71b3ba9c27a102eb6e792fc13348@11174 3c1deb5b-d424-0410-962d-aba41a686d42

OpenCMISS/zinc,hsorby/zinc,OpenCMISS/zinc,hsorby/zinc,OpenCMISS/zinc,hsorby/zinc,OpenCMISS/zinc,hsorby/zinc