- Improve the sqrt drawing to avoid the overlapping   problem mentionned here https://savannah.cern.ch/bugs/index.php?82436
- Improve the sqrt drawing to avoid the overlapping
  problem mentionned here https://savannah.cern.ch/bugs/index.php?82436


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@39289 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root