bug caused by gzip './usr/share/doc/libqt4-network/copyright' is different from the same file on the system

package bug caused by gzip creating different output files from the same source file on different architectures.

Preparing to replace libqt4-network:i386 4:4.7.4-0ubuntu8 (using .../libqt4-network_4%3a4.7.4-1ubuntu3_i386.deb) ...
Unpacking replacement libqt4-network:i386 ...
dpkg: error processing /var/cache/apt/archives/libqt4-network_4%3a4.7.4-1ubuntu3_i386.deb (--unpack):
 './usr/share/doc/libqt4-network/LGPL_EXCEPTION.txt' is different from the same file on the system

Preparing to replace libqt4-xmlpatterns 4:4.7.4-0ubuntu8 (using .../libqt4-xmlpatterns_4%3a4.7.4-1ubuntu3_amd64.deb) ...
Unpacking replacement libqt4-xmlpatterns ...
dpkg: error processing /var/cache/apt/archives/libqt4-xmlpatterns_4%3a4.7.4-1ubuntu3_amd64.deb (--unpack):
 './usr/share/doc/libqt4-xmlpatterns/LGPL_EXCEPTION.txt' is different from the same file on the system

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: libqt4-network 4:4.7.4-1ubuntu3 [modified: usr/share/doc/libqt4-network/copyright]
ProcVersionSignature: Ubuntu 3.1.0-2.3-generic 3.1.0
Uname: Linux 3.1.0-2-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.26-0ubuntu1
Architecture: amd64
Date: Wed Nov 23 21:11:45 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64+mac (20110901)
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: qt4-x11
UpgradeStatus: No upgrade log present (probably fresh install)