in GetSharedLibDeps() if the libs in the rootmap file don't contain

shared library extensions, e.g. Tetris in stead of Tetris.so, still
make sure they get matched. Allows for machine independent rootmap files.


git-svn-id: http://root.cern.ch/svn/root/trunk@19525 27541ba8-7e3a-0410-8455-c3a389f83636