Bug#288778: dpkg: [DPKG] too verbose when installing and/or upgrading

[Danilo Piazzalunga <danilopiazza@libero.it>]

Package: dpkg
Version: 1.10.25
Severity: wishlist

(This is not a duplicate of #71106)

Performing a major system upgrade makes dpkg spit out a great deal of
progress messages (e.g. "Unpaking...", "Preparing to replace...",
"Setting up..."). This is bad, because:

 - They distract the user from possible error and/or warning messages,
   like "directory not empty", output from maintainer scripts, etc.).
 - It violates the Unix Rule of Silence :-)

A --quiet option could be added (to be used by apt, for example), with
the purpose of shutting down such messages and making dpkg print out
only the relevant, "surprising" ones.

Best Regards,
    Danilo
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