NWChem: minor change to prevent bug in aonames
NWChem: minor change to prevent bug in aonames

* If atoms are labeled and have different basis functions, then
  this commit will keep them unique.

jchodera/cclib,langner/cclib,gaursagar/cclib,langner/cclib,ben-albrecht/cclib,gaursagar/cclib,berquist/cclib,ATenderholt/cclib,berquist/cclib,ghutchis/cclib,ghutchis/cclib,ben-albrecht/cclib,jchodera/cclib,ATenderholt/cclib,andersx/cclib,cclib/cclib,cclib/cclib,Schamnad/cclib,langner/cclib,berquist/cclib,cclib/cclib,Schamnad/cclib,andersx/cclib