Use correct flag for test requiring PETSc

diff --git a/tests/arpack/parpack_advection_diffusion_petsc.with_mpi=true.with_trilinos=true.with_arpack_with_parpack=true.mpirun=3.output b/tests/arpack/parpack_advection_diffusion_petsc.with_mpi=true.with_petsc=true.with_arpack_with_parpack=true.mpirun=3.output
similarity index 100%
rename from tests/arpack/parpack_advection_diffusion_petsc.with_mpi=true.with_trilinos=true.with_arpack_with_parpack=true.mpirun=3.output
rename to tests/arpack/parpack_advection_diffusion_petsc.with_mpi=true.with_petsc=true.with_arpack_with_parpack=true.mpirun=3.output