[Ubuntu] aide pour fichier sources.list

Bonjour,

Si vous pouviez m'aider à faire le ménage dans mon fichier sources.list car je l'ai un peu modifié et je pense qu'il y a des répétitions et des "pas-besoin" !

Merci

wim@neptune:~$ sudo cat /etc/apt/sources.list

# See https://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

## DÉPÔTS OFFICIELS
deb http://fr.archive.ubuntu.com/ubuntu/ feisty main restricted
deb-src http://fr.archive.ubuntu.com/ubuntu/ feisty restricted main multiverse universe #Added by software-properties
deb http://security.ubuntu.com/ubuntu/ feisty-security main restricted
deb-src http://security.ubuntu.com/ubuntu/ feisty-security restricted main multiverse universe #Added by software-properties
deb http://security.ubuntu.com/ubuntu/ feisty-security universe
deb http://security.ubuntu.com/ubuntu/ feisty-security multiverse
deb http://archive.ubuntu.com/ubuntu/ feisty-updates restricted main multiverse universe
deb-src http://archive.ubuntu.com/ubuntu/ feisty-updates restricted main multiverse universe


## Major bug fix updates produced after the final release of the
## distribution.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
deb http://fr.archive.ubuntu.com/ubuntu/ feisty universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://fr.archive.ubuntu.com/ubuntu/ feisty multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://fr.archive.ubuntu.com/ubuntu/ feisty-backports main restricted universe multiverse
deb-src http://fr.archive.ubuntu.com/ubuntu/ feisty-backports main restricted universe multiverse


## Commercial
deb http://archive.canonical.com/ feisty-commercial main

## MEDIBUNTU
deb http://fr.packages.medibuntu.org/ feisty free non-free
wim@neptune:~$