#7 record current disk state without actually saving files

[xurux]

i'd like to be able to do a backup _without_ saving the
content of the files and thus making just a snapshot of
the current state of the disk.
when i later do an incremental backup _only_ the
changed files should be saved

(i'd like to do this because i already have a full backup of
the disk state at some time)

Implementation details:

the program should just "forget" to save the content
(pointer=NULL), but do save crc, and in every case
except restore _assume_ the file-content was saved.

in case of trying to _restore_ such a "forgotten file" (the
only case of accessing the content) the program just
needs to display "file forgotten to backup"-message and
ignore this file

[Peter G Bennett]

Logged In: YES
user_id=875382

This is a variation of the Exclude logic. It should not be too
difficult. However I feel that it is not something that would be
used very much, and may cause problems if it was turned on
by accident and somebody thought their files had been
backed up. Does anybody else feel that this would be useful?