Python 3 fix for the Relax_disp.test_kteilum_mhsmith_eschulz_lcchristensen_gsolomentsev_moliveberg_makke_sod1wt_t25_to_cr72 system test.
The xrange builtin function does not exist in Python 3.
Authored by: bugman 2014-04-22
Parent: [r22817]
Child: [r22819]
