No option to specify no_proxy from gnome-control-center network proxy dialog

[J Phani Mahesh]

Steps to reproduce
 - Open gnome-control-center while running unity.
 - Navigate to network proxy section
 - Select proxy : Manual

What is expected: Different text input fields to allow setting {http,https,ftp,socks,no}_proxy environment variables.

What happens: There is no field to set no_proxy envirnment variable.

Consequences:
    The no_proxy environment variable contains a list of domains for which proxy settings should be ignored. Not setting it causes all connections to be routed through proxy, which may be undesirable in certain circumstances.

Temporary fix:
   Edit /etc/environment and manually add the entry

Additional information.
    Fully updated fresh install of Quantal (12.10), running Unity.

gnome-control-center:
  Installed: 1:3.4.2-0ubuntu19
  Candidate: 1:3.4.2-0ubuntu19

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: gnome-control-center 1:3.4.2-0ubuntu19
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
Date: Wed Nov 14 11:40:41 2012
ExecutablePath: /usr/bin/gnome-control-center
InstallationDate: Installed on 2012-11-07 (6 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
usr_lib_gnome-control-center:
 activity-log-manager-control-center 0.9.4-0ubuntu4
 deja-dup 24.0-0ubuntu1
 gnome-control-center-signon 0.0.18-0ubuntu1
 indicator-datetime 12.10.2-0ubuntu3

[Sebastien Bacher (seb128)]

thank you for your bug report, the issue was already reported though, see bug #843268