dpkg -l "foo*" should print only installed packages

[Andrea Bravetti]

sibilla ~ # lsb_release -rd
Description: Ubuntu 16.04.1 LTS
Release: 16.04

sibilla ~ # apt-cache policy dpkg
dpkg:
  Installato: 1.18.4ubuntu1.1
  Candidato: 1.18.4ubuntu1.1
  Tabella versione:
 *** 1.18.4ubuntu1.1 500
        500 http://it.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1.18.4ubuntu1 500
        500 http://it.archive.ubuntu.com/ubuntu xenial/main amd64 Packages

From the manual:

To list installed packages related to the editor vi(1) (note that dpkg-query does not load the available file anymore by default, and the dpkg-query --load-avail option should be used instead for that):
            dpkg -l '*vi*'

While "dpkg -l" without package name show only installed packages "dpkg -l foo*" show a list of installed and not installed (available) packages.

This bug may be related to #83734 but it's not the same problem.

sibilla ~ # dpkg -l "dpkg*"
ii dpkg 1.18.4ubuntu1.1 amd64 Debian package management system
un dpkg-cross <nessuna> <nessuna> (nessuna descrizione disponibile)
ii dpkg-dev 1.18.4ubuntu1.1 all Debian package development tools

It should be like this since dpkg-cross is available and not installed:

sibilla ~ # dpkg -l "dpkg*"
ii dpkg 1.18.4ubuntu1.1 amd64 Debian package management system
ii dpkg-dev 1.18.4ubuntu1.1 all Debian package development tools