bhyve: process: don't bother seeking to end of log
bhyve: process: don't bother seeking to end of log

The file is opened O_APPEND.

Reviewed-by: Daniel P. Berrangé <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>
Signed-off-by: Ryan Moeller <ea3cd978650417470535f3a4725b6b5042a6ab59@iXsystems.com>

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