Fix some variable sets that contain tau and not laplacian.
Fix some variable sets that contain tau and not laplacian.

bast/xcfun,dftlibs/xcfun,robertodr/xcfun,dftlibs/xcfun,robertodr/xcfun,bast/xcfun,dftlibs/xcfun,bast/xcfun,robertodr/xcfun,dftlibs/xcfun,robertodr/xcfun,bast/xcfun