Fix virbitmaptest on 32-bit
Fix virbitmaptest on 32-bit

My commit 7d8afc4 was passing the incorrect size to
virBitmapDataToString in the newly added test.

jardasgit/libvirt,eskultety/libvirt,zippy2/libvirt,jardasgit/libvirt,datto/libvirt,crobinso/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,agx/libvirt,elmarco/libvirt,crobinso/libvirt,elmarco/libvirt,taget/libvirt,taget/libvirt,nertpinx/libvirt,olafhering/libvirt,jardasgit/libvirt,jfehlig/libvirt,libvirt/libvirt,rlaager/libvirt,zippy2/libvirt,libvirt/libvirt,andreabolognani/libvirt,elmarco/libvirt,datto/libvirt,taget/libvirt,elmarco/libvirt,VenkatDatta/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,rlaager/libvirt,shugaoye/libvirt,jfehlig/libvirt,andreabolognani/libvirt,taget/libvirt,nertpinx/libvirt,libvirt/libvirt,zippy2/libvirt,datto/libvirt,rlaager/libvirt,olafhering/libvirt,andreabolognani/libvirt,elmarco/libvirt,fabianfreyer/libvirt,taget/libvirt,datto/libvirt,agx/libvirt,crobinso/libvirt,fabianfreyer/libvirt,shugaoye/libvirt,datto/libvirt,eskultety/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,agx/libvirt,rlaager/libvirt,jardasgit/libvirt,agx/libvirt,libvirt/libvirt,eskultety/libvirt,olafhering/libvirt,shugaoye/libvirt,eskultety/libvirt,olafhering/libvirt,shugaoye/libvirt,nertpinx/libvirt,VenkatDatta/libvirt,VenkatDatta/libvirt,rlaager/libvirt,andreabolognani/libvirt,zippy2/libvirt,andreabolognani/libvirt,eskultety/libvirt,jfehlig/libvirt,nertpinx/libvirt,crobinso/libvirt,jardasgit/libvirt,shugaoye/libvirt,agx/libvirt