Fix a quicktest.
Fix a quicktest.

The test assigned MPI return codes to a variable, but then did not do anything with this
variable. We may as well test for errors.

sairajat/dealii,kalj/dealii,sairajat/dealii,kalj/dealii,danshapero/dealii,sairajat/dealii,naliboff/dealii,danshapero/dealii,kalj/dealii,EGP-CIG-REU/dealii,sairajat/dealii,kalj/dealii,danshapero/dealii,kalj/dealii,danshapero/dealii,EGP-CIG-REU/dealii,EGP-CIG-REU/dealii,EGP-CIG-REU/dealii,naliboff/dealii,danshapero/dealii,sairajat/dealii,danshapero/dealii,kalj/dealii,naliboff/dealii,sairajat/dealii,EGP-CIG-REU/dealii,kalj/dealii,danshapero/dealii,sairajat/dealii,naliboff/dealii,EGP-CIG-REU/dealii,naliboff/dealii,naliboff/dealii,EGP-CIG-REU/dealii,naliboff/dealii