virTestCompareToULL: Use VIR_AUTOFREE()
virTestCompareToULL: Use VIR_AUTOFREE()

In order to save a few lines of code, and also since it's hype
let's use VIR_AUTOFREE() for the two strings we allocate there.

Signed-off-by: Michal Privoznik <83d82aaba2eed257f4814b0c239c260c4caaadf0@redhat.com>
Reviewed-by: Andrea Bolognani <3ada0bee826c753786fdbba72243dfba997094cf@redhat.com>
Reviewed-by: Ján Tomko <4cab11cfb98d3c937327354a78eb07dbb6ee2bc6@redhat.com>

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