Exit ex20 successfully with explanation when compiled without PETSc support.
Exit ex20 successfully with explanation when compiled without PETSc
support.



git-svn-id: e88a1e38e13faf406e05cc89eca8dd613216f6c4@3254 434f946d-2f3d-0410-ba4c-cb9f52fb0dbf

libMesh/libmesh,jwpeterson/libmesh,aeslaughter/libmesh,hrittich/libmesh,aeslaughter/libmesh,aeslaughter/libmesh,giorgiobornia/libmesh,hrittich/libmesh,coreymbryant/libmesh,balborian/libmesh,capitalaslash/libmesh,dknez/libmesh,pbauman/libmesh,vikramvgarg/libmesh,benkirk/libmesh,coreymbryant/libmesh,libMesh/libmesh,dmcdougall/libmesh,svallaghe/libmesh,giorgiobornia/libmesh,dmcdougall/libmesh,hrittich/libmesh,balborian/libmesh,hrittich/libmesh,90jrong/libmesh,dschwen/libmesh,cahaynes/libmesh,benkirk/libmesh,BalticPinguin/libmesh,pbauman/libmesh,dmcdougall/libmesh,aeslaughter/libmesh,giorgiobornia/libmesh,BalticPinguin/libmesh,90jrong/libmesh,giorgiobornia/libmesh,hrittich/libmesh,pbauman/libmesh,dknez/libmesh,balborian/libmesh,giorgiobornia/libmesh,friedmud/libmesh,90jrong/libmesh,aeslaughter/libmesh,roystgnr/libmesh,aeslaughter/libmesh,90jrong/libmesh,cahaynes/libmesh,dmcdougall/libmesh,vikramvgarg/libmesh,capitalaslash/libmesh,dmcdougall/libmesh,benkirk/libmesh,friedmud/libmesh,dschwen/libmesh,coreymbryant/libmesh,cahaynes/libmesh,dschwen/libmesh,roystgnr/libmesh,balborian/libmesh,dknez/libmesh,svallaghe/libmesh,balborian/libmesh,friedmud/libmesh,benkirk/libmesh,libMesh/libmesh,hrittich/libmesh,benkirk/libmesh,svallaghe/libmesh,pbauman/libmesh,BalticPinguin/libmesh,pbauman/libmesh,libMesh/libmesh,benkirk/libmesh,benkirk/libmesh,vikramvgarg/libmesh,90jrong/libmesh,dmcdougall/libmesh,roystgnr/libmesh,balborian/libmesh,hrittich/libmesh,cahaynes/libmesh,dschwen/libmesh,coreymbryant/libmesh,friedmud/libmesh,capitalaslash/libmesh,BalticPinguin/libmesh,jwpeterson/libmesh,capitalaslash/libmesh,cahaynes/libmesh,vikramvgarg/libmesh,90jrong/libmesh,giorgiobornia/libmesh,dknez/libmesh,balborian/libmesh,capitalaslash/libmesh,friedmud/libmesh,vikramvgarg/libmesh,vikramvgarg/libmesh,dmcdougall/libmesh,libMesh/libmesh,dknez/libmesh,90jrong/libmesh,hrittich/libmesh,jwpeterson/libmesh,jwpeterson/libmesh,dschwen/libmesh,aeslaughter/libmesh,libMesh/libmesh,pbauman/libmesh,dschwen/libmesh,coreymbryant/libmesh,balborian/libmesh,giorgiobornia/libmesh,BalticPinguin/libmesh,friedmud/libmesh,cahaynes/libmesh,pbauman/libmesh,dknez/libmesh,svallaghe/libmesh,jwpeterson/libmesh,dschwen/libmesh,jwpeterson/libmesh,balborian/libmesh,capitalaslash/libmesh,dknez/libmesh,jwpeterson/libmesh,svallaghe/libmesh,cahaynes/libmesh,roystgnr/libmesh,coreymbryant/libmesh,aeslaughter/libmesh,vikramvgarg/libmesh,giorgiobornia/libmesh,benkirk/libmesh,dschwen/libmesh,roystgnr/libmesh,dknez/libmesh,90jrong/libmesh,benkirk/libmesh,friedmud/libmesh,cahaynes/libmesh,balborian/libmesh,roystgnr/libmesh,BalticPinguin/libmesh,vikramvgarg/libmesh,90jrong/libmesh,svallaghe/libmesh,pbauman/libmesh,hrittich/libmesh,pbauman/libmesh,BalticPinguin/libmesh,libMesh/libmesh,capitalaslash/libmesh,dmcdougall/libmesh,svallaghe/libmesh,jwpeterson/libmesh,svallaghe/libmesh,aeslaughter/libmesh,roystgnr/libmesh,svallaghe/libmesh,coreymbryant/libmesh,BalticPinguin/libmesh,friedmud/libmesh,coreymbryant/libmesh,capitalaslash/libmesh,vikramvgarg/libmesh,friedmud/libmesh,roystgnr/libmesh,giorgiobornia/libmesh,libMesh/libmesh