qemuProcessStop: Set @def early
qemuProcessStop: Set @def early

The @def variable holds pointer to the domain defintion, but is
set only somewhere in the middle of the function. This is
suboptimal.

Signed-off-by: Michal Privoznik <83d82aaba2eed257f4814b0c239c260c4caaadf0@redhat.com>
Reviewed-by: Erik Skultety <2c14d38fa47c8799f1b9c16280abe27f8edfec6e@redhat.com>

fabianfreyer/libvirt,nertpinx/libvirt,zippy2/libvirt,fabianfreyer/libvirt,olafhering/libvirt,crobinso/libvirt,jardasgit/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,crobinso/libvirt,nertpinx/libvirt,crobinso/libvirt,libvirt/libvirt,libvirt/libvirt,nertpinx/libvirt,crobinso/libvirt,fabianfreyer/libvirt,libvirt/libvirt,jfehlig/libvirt,jfehlig/libvirt,jfehlig/libvirt,olafhering/libvirt,nertpinx/libvirt,jardasgit/libvirt,zippy2/libvirt,olafhering/libvirt,nertpinx/libvirt,zippy2/libvirt,libvirt/libvirt,fabianfreyer/libvirt,zippy2/libvirt,jardasgit/libvirt,olafhering/libvirt,jardasgit/libvirt