Fix test that was failing with PETSc >= 3.6.x
Fix test that was failing with PETSc >= 3.6.x

The change was in the default behavior on the shift type for PC ilu.
See this thread: http://lists.mcs.anl.gov/pipermail/petsc-users/2016-January/028210.html

nicholasmalaya/grins,nicholasmalaya/grins,nicholasmalaya/grins,nicholasmalaya/grins