Correct code guard.


git-svn-id: https://root.cern.ch/svn/root/trunk@48605 27541ba8-7e3a-0410-8455-c3a389f83636
Add missing #include


git-svn-id: https://root.cern.ch/svn/root/trunk@48606 27541ba8-7e3a-0410-8455-c3a389f83636