r-xml: updated url and added version 3.98-1.9 (#5466)
r-xml: updated url and added version 3.98-1.9 (#5466)

* r-xml: updated url and added version 3.98-1.9

* Update package.py

lgarren/spack,skosukhin/spack,matthiasdiener/spack,TheTimmy/spack,iulian787/spack,tmerrick1/spack,LLNL/spack,tmerrick1/spack,mfherbst/spack,krafczyk/spack,tmerrick1/spack,iulian787/spack,skosukhin/spack,EmreAtes/spack,EmreAtes/spack,matthiasdiener/spack,lgarren/spack,TheTimmy/spack,lgarren/spack,LLNL/spack,LLNL/spack,lgarren/spack,skosukhin/spack,TheTimmy/spack,krafczyk/spack,TheTimmy/spack,mfherbst/spack,EmreAtes/spack,tmerrick1/spack,krafczyk/spack,EmreAtes/spack,matthiasdiener/spack,mfherbst/spack,LLNL/spack,mfherbst/spack,krafczyk/spack,matthiasdiener/spack,LLNL/spack,tmerrick1/spack,iulian787/spack,iulian787/spack,TheTimmy/spack,skosukhin/spack,iulian787/spack,mfherbst/spack,lgarren/spack,matthiasdiener/spack,EmreAtes/spack,skosukhin/spack,krafczyk/spack