Fix compilation of Vector when configured with PETSc
Fix compilation of Vector when configured with PETSc

this was introduced in e5f7ade

angelrca/dealii,rrgrove6/dealii,mtezzele/dealii,EGP-CIG-REU/dealii,EGP-CIG-REU/dealii,naliboff/dealii,Arezou-gh/dealii,mtezzele/dealii,maieneuro/dealii,maieneuro/dealii,natashasharma/dealii,YongYang86/dealii,ESeNonFossiIo/dealii,EGP-CIG-REU/dealii,flow123d/dealii,shakirbsm/dealii,ESeNonFossiIo/dealii,msteigemann/dealii,msteigemann/dealii,flow123d/dealii,kalj/dealii,andreamola/dealii,JaeryunYim/dealii,EGP-CIG-REU/dealii,lue/dealii,Arezou-gh/dealii,Arezou-gh/dealii,EGP-CIG-REU/dealii,ibkim11/dealii,flow123d/dealii,lue/dealii,lpolster/dealii,jperryhouts/dealii,ibkim11/dealii,JaeryunYim/dealii,sriharisundar/dealii,jperryhouts/dealii,danshapero/dealii,pesser/dealii,YongYang86/dealii,mtezzele/dealii,danshapero/dealii,YongYang86/dealii,ibkim11/dealii,kalj/dealii,maieneuro/dealii,mac-a/dealii,kalj/dealii,spco/dealii,sriharisundar/dealii,johntfoster/dealii,mtezzele/dealii,rrgrove6/dealii,gpitton/dealii,sairajat/dealii,Arezou-gh/dealii,natashasharma/dealii,ibkim11/dealii,mac-a/dealii,ESeNonFossiIo/dealii,YongYang86/dealii,adamkosik/dealii,YongYang86/dealii,ESeNonFossiIo/dealii,EGP-CIG-REU/dealii,Arezou-gh/dealii,kalj/dealii,andreamola/dealii,sriharisundar/dealii,shakirbsm/dealii,naliboff/dealii,maieneuro/dealii,JaeryunYim/dealii,shakirbsm/dealii,jperryhouts/dealii,angelrca/dealii,jperryhouts/dealii,msteigemann/dealii,danshapero/dealii,angelrca/dealii,natashasharma/dealii,JaeryunYim/dealii,maieneuro/dealii,pesser/dealii,flow123d/dealii,johntfoster/dealii,shakirbsm/dealii,spco/dealii,natashasharma/dealii,andreamola/dealii,msteigemann/dealii,kalj/dealii,jperryhouts/dealii,danshapero/dealii,mtezzele/dealii,lpolster/dealii,johntfoster/dealii,andreamola/dealii,lue/dealii,nicolacavallini/dealii,maieneuro/dealii,sriharisundar/dealii,Arezou-gh/dealii,gpitton/dealii,EGP-CIG-REU/dealii,adamkosik/dealii,andreamola/dealii,ibkim11/dealii,Arezou-gh/dealii,sriharisundar/dealii,adamkosik/dealii,naliboff/dealii,sairajat/dealii,danshapero/dealii,sriharisundar/dealii,danshapero/dealii,johntfoster/dealii,shakirbsm/dealii,nicolacavallini/dealii,lue/dealii,JaeryunYim/dealii,lpolster/dealii,msteigemann/dealii,mac-a/dealii,johntfoster/dealii,pesser/dealii,gpitton/dealii,ibkim11/dealii,natashasharma/dealii,rrgrove6/dealii,natashasharma/dealii,pesser/dealii,mtezzele/dealii,adamkosik/dealii,jperryhouts/dealii,ESeNonFossiIo/dealii,sairajat/dealii,angelrca/dealii,sairajat/dealii,gpitton/dealii,sriharisundar/dealii,angelrca/dealii,lpolster/dealii,JaeryunYim/dealii,mac-a/dealii,angelrca/dealii,johntfoster/dealii,msteigemann/dealii,johntfoster/dealii,spco/dealii,rrgrove6/dealii,naliboff/dealii,rrgrove6/dealii,spco/dealii,jperryhouts/dealii,adamkosik/dealii,nicolacavallini/dealii,mac-a/dealii,nicolacavallini/dealii,lpolster/dealii,spco/dealii,gpitton/dealii,ESeNonFossiIo/dealii,pesser/dealii,adamkosik/dealii,andreamola/dealii,nicolacavallini/dealii,nicolacavallini/dealii,msteigemann/dealii,nicolacavallini/dealii,lue/dealii,lue/dealii,spco/dealii,flow123d/dealii,sairajat/dealii,lue/dealii,maieneuro/dealii,JaeryunYim/dealii,pesser/dealii,flow123d/dealii,rrgrove6/dealii,andreamola/dealii,shakirbsm/dealii,kalj/dealii,naliboff/dealii,danshapero/dealii,sairajat/dealii,natashasharma/dealii,YongYang86/dealii,pesser/dealii,spco/dealii,lpolster/dealii,mac-a/dealii,rrgrove6/dealii,angelrca/dealii,kalj/dealii,mac-a/dealii,YongYang86/dealii,mtezzele/dealii,sairajat/dealii,ESeNonFossiIo/dealii,lpolster/dealii,ibkim11/dealii,adamkosik/dealii,gpitton/dealii,shakirbsm/dealii,naliboff/dealii,gpitton/dealii,flow123d/dealii,naliboff/dealii