[Nmh-workers] [patch] filtering support for inc

[Mikhail]

Hello, list.

One of the features I was missing in nmh was support for mail filtering
in 'inc'.

I've attached patch against git, which implements this functionality for
POP protocol.

>From a user perspective there is new flag '-slocal', which he can pass
to 'inc', then inc will save each message in temp file, and call 'slocal
-file <file> -verbose'. Man page was updated accordingly.

Can you review the patch and give your opinions and comments on it?

inc_filter.diff
Description: inc_filter.diff