[Libguestfs] [PATCH] Fix virt-v2v exit codes

[Jim Meyering]

Matthew Booth wrote:
> If something die()s, the error status can get lost in cleanup when various
> child processes exit and overwrite $?. Specifically, the RHEV target uses a
> child process for NFS access, and libguestfs launches a qemu child process.
>
> This change ensures that DESTROY and END blocks which perform operations on
> child processes explicitly preserve $?.

Hi Matt,
Those change look fine to me.