ignore --ccache-skip if it is in CFLAGS


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Tools/PyCmt/trunk@564836 4525493e-7705-40b1-a816-d608a930855b
ignore --ccache-skip if it is in CFLAGS


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Tools/PyCmt/trunk@564840 4525493e-7705-40b1-a816-d608a930855b