From Laurens Voerman, "a minor patch for osgconv to make sure the helptext is printed if you run "osgconv -h" with OSG_NOTIFY_LEVEL set too low.
applys to both trunk and stable branch."


git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/branches/OpenSceneGraph-3.2@14279 16af8721-9629-0410-8352-f15c8da7e697