Description of problem:

When looking at /usr/share/doc/dovecot-* directory all files there make
an _impression_ of beeing current at the time of packaging and one wonders
why USE-WIKI-INSTEAD admonishion is called for.  Only digging through sources
brings to ligth that most of these files are actually from the beginning
of 2003 and original timestamps carry an information that these descriptions
may be correct but not quite. :-)

It is likely something as simple as missing 'install -p -m...' instead of
straight 'install -m...', or equivalents, in few crucial places and it would
be rather helpful.