exclude also /usr/lib/amd64 and /usr/lib/64 and /usr/lib/hpux64 as these

default paths are always searched in the respective platforms (Solaris, HP-UX).


git-svn-id: http://root.cern.ch/svn/root/trunk@41777 27541ba8-7e3a-0410-8455-c3a389f83636