netcfg/dhcp_timeout doesn't take effect when installing

This bug was fixed in the package netcfg - 1.56ubuntu1

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netcfg (1.56ubuntu1) natty; urgency=low

  * Resynchronise with Debian. Remaining changes:
    - Set default hostname to 'ubuntu'.
    - Drop priority of netcfg/get_domain to medium for non-static
      configurations.
    - Use 'auto <interface>' for all interfaces, dropping allow-hotplug
      which doesn't work with current udev.
    - Call /usr/lib/network-manager/ifblacklist_migrate.sh from
      finish-install if present, so that 'auto dhcp' interfaces are disabled
      if network-manager is in use. May be preseeded away with
      netcfg/network-manager.
    - Bump the DHCP timeout to 30 seconds.

netcfg (1.56) unstable; urgency=low

  [ Aurelien Jarno ]
  * Add sparc64 to the architectures list.

  [ Updated translations ]
  * Asturian (ast.po) by maacub
  * Bulgarian (bg.po) by Damyan Ivanov

netcfg (1.55) unstable; urgency=low

  [ Jeremie Koenig ]
  * More fixes for Hurd support, including network device detection
    (closes: 588761).

  [ Aurelien Jarno ]
  * dhcp: ask udhcpc for dns and not namesrv.

netcfg (1.54) unstable; urgency=low

  [ Samuel Thibault ]
  * Fixes for Hurd support.

  [ Updated translations ]
  * Belarusian (be.po) by Viktar Siarheichyk
  * Croatian (hr.po) by Josip Rodin
  * Kurdish (ku.po) by Erdal Ronahi
  * Macedonian (mk.po) by Arangel Angov

netcfg (1.53) unstable; urgency=low

  [ Samuel Thibault ]
  * Fixes for Hurd support. Closes: #573878.

  [ Joey Hess ]
  * Do not assume that debhelper acts on packages not relevant to build arch.
    (See #576885)

  [ Frans Pop ]
  * Revert workaround for FTBFS on s390 which is no longer needed as of
    debhelper version 7.4.17.

  [ Otavio Salvador ]
  * kfreebsd-{amd64,i386}: depends on isc-dhcp-client-udeb (as it replaces
    the dhcp3-client-udeb).
  * dhcp: drop dhcp3 compatibility since isc-dhcp looks exactly as
    regular dhclient.

  [ Aurelien Jarno ]
  * simplify kfreebsd dependencies.
  * depends on freebsd-net-tools-udeb on kfreebsd.
  * add support for GNU/kFreeBSD.

  [ Updated translations ]
  * Asturian (ast.po) by astur
  * Danish (da.po) by Jacob Sparre Andersen
  * German (de.po) by Holger Wansing
  * Persian (fa.po) by acathur
  * French (fr.po) by Christian Perrier
  * Galician (gl.po) by Jorge Barreiro
  * Hebrew (he.po) by Lior Kaplan
  * Indonesian (id.po) by Arief S Fitrianto
  * Kazakh (kk.po) by Baurzhan Muftakhidinov
  * Central Khmer (km.po) by Khoem Sokhem
  * Korean (ko.po) by Changwoo Ryu
  * Lithuanian (lt.po) by Kęstutis Biliūnas
  * Latvian (lv.po) by Aigars Mahinovs
  * Norwegian Nynorsk (nn.po) by Eirik U. Birkeland
  * Portuguese (Brazil) (pt_BR.po) by Felipe Augusto van de Wiel (faw)
  * Romanian (ro.po) by Andrei Popescu
  * Slovenian (sl.po) by Vanja Cvelbar
  * Thai (th.po) by Theppitak Karoonboonyanan

netcfg (1.52) unstable; urgency=low

  [ Aurelien Jarno ]
  * Loopback network interface name is lo on GNU/Linux and lo0 on
    GNU/kFreeBSD; generalize it with a macro.
  * Build the netcfg binary package on sh4.

  [ Otavio Salvador ]
  * Add support to disable network configuration using preseeding in
    netcfg/enable template. Thanks to Anth...