Fix up a change from a previous patch: use only a single thread in this test.
Fix up a change from a previous patch: use only a single thread in this test.

spco/dealii,shakirbsm/dealii,naliboff/dealii,maieneuro/dealii,danshapero/dealii,rrgrove6/dealii,andreamola/dealii,Arezou-gh/dealii,EGP-CIG-REU/dealii,mac-a/dealii,shakirbsm/dealii,mtezzele/dealii,Arezou-gh/dealii,angelrca/dealii,johntfoster/dealii,naliboff/dealii,YongYang86/dealii,sairajat/dealii,johntfoster/dealii,pesser/dealii,gpitton/dealii,YongYang86/dealii,rrgrove6/dealii,natashasharma/dealii,jperryhouts/dealii,adamkosik/dealii,msteigemann/dealii,ESeNonFossiIo/dealii,adamkosik/dealii,ibkim11/dealii,maieneuro/dealii,natashasharma/dealii,naliboff/dealii,rrgrove6/dealii,nicolacavallini/dealii,maieneuro/dealii,pesser/dealii,sairajat/dealii,sriharisundar/dealii,kalj/dealii,nicolacavallini/dealii,jperryhouts/dealii,JaeryunYim/dealii,spco/dealii,angelrca/dealii,jperryhouts/dealii,maieneuro/dealii,mac-a/dealii,shakirbsm/dealii,natashasharma/dealii,lpolster/dealii,pesser/dealii,gpitton/dealii,naliboff/dealii,andreamola/dealii,msteigemann/dealii,spco/dealii,nicolacavallini/dealii,ESeNonFossiIo/dealii,lue/dealii,mtezzele/dealii,ibkim11/dealii,JaeryunYim/dealii,shakirbsm/dealii,msteigemann/dealii,ESeNonFossiIo/dealii,andreamola/dealii,lpolster/dealii,mtezzele/dealii,danshapero/dealii,ibkim11/dealii,ESeNonFossiIo/dealii,lue/dealii,EGP-CIG-REU/dealii,kalj/dealii,maieneuro/dealii,andreamola/dealii,mac-a/dealii,YongYang86/dealii,sriharisundar/dealii,andreamola/dealii,spco/dealii,mtezzele/dealii,johntfoster/dealii,lpolster/dealii,danshapero/dealii,jperryhouts/dealii,Arezou-gh/dealii,gpitton/dealii,adamkosik/dealii,andreamola/dealii,sairajat/dealii,rrgrove6/dealii,nicolacavallini/dealii,pesser/dealii,natashasharma/dealii,adamkosik/dealii,ESeNonFossiIo/dealii,jperryhouts/dealii,angelrca/dealii,ibkim11/dealii,JaeryunYim/dealii,danshapero/dealii,sairajat/dealii,kalj/dealii,maieneuro/dealii,ESeNonFossiIo/dealii,spco/dealii,gpitton/dealii,msteigemann/dealii,angelrca/dealii,EGP-CIG-REU/dealii,EGP-CIG-REU/dealii,mac-a/dealii,johntfoster/dealii,YongYang86/dealii,mac-a/dealii,shakirbsm/dealii,EGP-CIG-REU/dealii,lpolster/dealii,rrgrove6/dealii,naliboff/dealii,ibkim11/dealii,johntfoster/dealii,gpitton/dealii,angelrca/dealii,EGP-CIG-REU/dealii,nicolacavallini/dealii,naliboff/dealii,shakirbsm/dealii,YongYang86/dealii,sriharisundar/dealii,natashasharma/dealii,mac-a/dealii,adamkosik/dealii,Arezou-gh/dealii,lue/dealii,kalj/dealii,nicolacavallini/dealii,JaeryunYim/dealii,mtezzele/dealii,rrgrove6/dealii,danshapero/dealii,Arezou-gh/dealii,sriharisundar/dealii,spco/dealii,kalj/dealii,mtezzele/dealii,rrgrove6/dealii,angelrca/dealii,jperryhouts/dealii,sairajat/dealii,YongYang86/dealii,ibkim11/dealii,gpitton/dealii,adamkosik/dealii,kalj/dealii,EGP-CIG-REU/dealii,jperryhouts/dealii,danshapero/dealii,lpolster/dealii,pesser/dealii,angelrca/dealii,ibkim11/dealii,lue/dealii,lpolster/dealii,msteigemann/dealii,YongYang86/dealii,lpolster/dealii,sairajat/dealii,sriharisundar/dealii,JaeryunYim/dealii,andreamola/dealii,msteigemann/dealii,johntfoster/dealii,JaeryunYim/dealii,Arezou-gh/dealii,Arezou-gh/dealii,lue/dealii,natashasharma/dealii,sriharisundar/dealii,gpitton/dealii,spco/dealii,sairajat/dealii,danshapero/dealii,JaeryunYim/dealii,mac-a/dealii,msteigemann/dealii,pesser/dealii,mtezzele/dealii,ESeNonFossiIo/dealii,shakirbsm/dealii,kalj/dealii,johntfoster/dealii,naliboff/dealii,adamkosik/dealii,maieneuro/dealii,lue/dealii,pesser/dealii,lue/dealii,sriharisundar/dealii,nicolacavallini/dealii,natashasharma/dealii