qemu: Rename ret variable in qemuProcessStart
qemu: Rename ret variable in qemuProcessStart

Generally, we use "ret" variable for storing the value we are going to
return at the and of a function, but this is not the case in
qemuProcessStart. Let's rename "ret" as "rv".

Signed-off-by: Jiri Denemark <62bdf77dc47919a4d59a91822129d14633cfca81@redhat.com>

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