Patch #5641: Suppress GaudiAlg HbookName.h clang warnings

https://savannah.cern.ch/patch/index.php?5641

From: Christopher R Jones <christopher.rob.jones@cern.ch>


git-svn-id: file:///afs/cern.ch/work/b/binet/dev/repos/gaudi-svn-mirror/Gaudi/trunk/GaudiAlg@7204 22b0f739-a4da-4a50-9948-337547c35a65