dpkg: update prefix (#603)

* dpkg: update prefix

The prefix now works properly with BB_SYSTEMROOT as it no longer
writes everything with a prefixed /

For example, with BB_SYSTEMROOT=C:/somepath, the /var/lib/dpkg directory
is now underneath that, rather than the root of that drive.

Also added handling so that the extracted files are also there.

* dpkg: prefix updates

For clarity, the .list files now always include leading slashes,
matching what happens in upstream.
There is then special handling under remove_file_array to turn them
back into relative paths. The handling assumes that files can be both,
since it does get called with some relative paths.

Adds 14-54 bytes.

0 files changed, 0 insertions, 0 deletions