man-db: cache handling

[Yaakov Selkowitz]

Chris,

There are a few issues with the current man-db setup:

1) the cache is not strictly necessary for operation of man(1);

2) mandb -c is quite slow with a large number of manpages (~20min on my
system)

3) generating the cache only during man-db postinstall doesn't help for
manpages updated or added between man-db releases.

Therefore, we need to discuss further how to best handle the man-db
cache.  In the meantime, to help avoid user complaints, could you ship a
new release without the postinstall/preremove?


Yaakov