pkg_info(1) and wildcards / by-file listenings

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

Hi all,
currently pkg_info will incrementally list all packages that match each
argument when used to query the pkgdb. This has the advantage of
starting earlier, but has the disadvantage of printing the same package
possibly multiple times and also without sorting. What do you think of
changing this to build a list of unique packages matching the arguments
first, optionally sorting it and then creating output?

Possible sort criterions are lexical and install time. Selection
criterions are all, manual installed, automatically installed, leaves
as well as packages matching the given list.

Joerg