[Libguestfs] [PATCH 0/4] sysprep: Remove various backup files.

https://bugzilla.redhat.com/show_bug.cgi?id=1401320 This series contains two new operations. The second -- and least controversial -- is "passwd-backups" which removes files such as /etc/passwd-, /etc/shadow- and so on. The first one ("backup-files") searches the whole guest filesystem for any regular file which looks like an editor backup file, such as "*~" and deletes it. Unfortunately there are two problems with this operation at the moment. It's slow, taking 30 seconds to examine a virt-builder fedora-25 barebones filesystem. It can also remove RPM-owned files (see https://bugzilla.redhat.com/show_bug.cgi?id=1404634). It should possibly skip /usr or only check a whitelist of directories such as /etc. Rich.