tests: qemuxml2argv: remove full testInfo initialization
tests: qemuxml2argv: remove full testInfo initialization

Only initialize the fields that are passed in

Reviewed-by: Andrea Bolognani <3ada0bee826c753786fdbba72243dfba997094cf@redhat.com>
Signed-off-by: Cole Robinson <7cd45ff6ad1fb7cf556a02797d774247851499f8@redhat.com>

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