'fixing bug #101385: use ctypes to remove unwanted stray NULLs (also to extract tag_guid)'


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Tools/PyUtils/trunk@546655 4525493e-7705-40b1-a816-d608a930855b
filter-and-merge: add --disable-recursive-opt: useful for large n-tuples (python is recursively slow)


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Tools/PyUtils/trunk@547442 4525493e-7705-40b1-a816-d608a930855b