* scripts/update-alternatives.8: Add --config to action section, and add

* scripts/update-alternatives.8: Add --config to action section, and add
  as EXAMPLES section.
* scripts/install-info.pl: install-info --version and --help now display
  on stdout.
* main/dpkg{,-query}.8: Mention what -S will not find.
* main/dpkg.8: Mention that downgrading a package can have serious
  consequences.
* scripts/dpkg-scanpackages.8: Include small note that other tools might
  use the generated Packages file.
* scripts/dpkg-source.1: Fix some typos.
* dselect/dselect.8: dselect is not the only interface for installing
  packages nowadays.
* utils/start-stop-daemon.8: Note that --nicelevel takes an argument.
* man/en/deb-control.8: Remove duplicate 'can'.
* scripts/dpkg-scansources.pl: Fix short description.
* main/dpkg.8: Move dpkg-query options to their own subsection, like
  dpkg-deb.
* main/main.c, main/dpkg.8: Add --dry-run and --simulate as synonyms to
  --no-act.
* scripts/dpkg-architecture.pl: Fix wrong reference to
  DEB_BUILD_GNU_SYSTEM on --host
* man/en/deb-control.5: s/Usuaully/Usually/
* dselect/dselect.8: Removed reference in dselect(8) about recommends not
  being handled well.
* scripts/dpkg-parsechangelog.pl: s/dpkg-source/dpkg-parsechangelog/ in
  -h
* scripts/dpkg-source.1: Unhighlight "May be repeated multiple times."
* dpkg-deb/main.c: Make all actions in -h lower case.
* utils/start-stop-daemon.[c8]: Add -g|--group.
* main/dpkg.8: s/THANKS/THANKS.gz/
* main/dpkg.8: Mention running dselect, install after --set-selections.
* main/main.c: Remove disabled --command-fd from help.