postgresql doesn't recognize Trisquel; requests a bug report to distro

Here's the console copy-paste that shows postgresql not recognizing Trisquel as a distro.

sudo apt-get install postgresql
[sudo] password for gsvolt:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
libpq5 postgresql-9.1 postgresql-client-9.1 postgresql-client-common postgresql-common
Suggested packages:
oidentd ident-server locales-all postgresql-doc-9.1
The following NEW packages will be installed:
libpq5 postgresql postgresql-9.1 postgresql-client-9.1 postgresql-client-common postgresql-common
0 upgraded, 6 newly installed, 0 to remove and 1 not upgraded.
Need to get 5,502 kB of archives.
After this operation, 15.8 MB of additional disk space will be used.
Do you want to continue [Y/n]? Y
Get:1 http://es.archive.trisquel.info/trisquel/ toutatis-security/main libpq5 i386 9.1.9-0ubuntu12.04 [98.0 kB]
Get:2 http://es.archive.trisquel.info/trisquel/ toutatis-updates/main postgresql-client-common all 129ubuntu1 [25.1 kB]
Get:3 http://es.archive.trisquel.info/trisquel/ toutatis-security/main postgresql-client-9.1 i386 9.1.9-0ubuntu12.04 [962 kB]
Get:4 http://es.archive.trisquel.info/trisquel/ toutatis-updates/main postgresql-common all 129ubuntu1 [96.5 kB]
Get:5 http://es.archive.trisquel.info/trisquel/ toutatis-security/main postgresql-9.1 i386 9.1.9-0ubuntu12.04 [4,314 kB]
Get:6 http://es.archive.trisquel.info/trisquel/ toutatis-updates/main postgresql all 9.1+129ubuntu1 [5,552 B]
Fetched 5,502 kB in 6s (836 kB/s)
Preconfiguring packages ...
Selecting previously unselected package libpq5.
(Reading database ... 196157 files and directories currently installed.)
Unpacking libpq5 (from .../libpq5_9.1.9-0ubuntu12.04_i386.deb) ...
Selecting previously unselected package postgresql-client-common.
Unpacking postgresql-client-common (from .../postgresql-client-common_129ubuntu1_all.deb) ...
Selecting previously unselected package postgresql-client-9.1.
Unpacking postgresql-client-9.1 (from .../postgresql-client-9.1_9.1.9-0ubuntu12.04_i386.deb) ...
Selecting previously unselected package postgresql-common.
Unpacking postgresql-common (from .../postgresql-common_129ubuntu1_all.deb) ...
Adding 'diversion of /usr/bin/pg_config to /usr/bin/pg_config.libpq-dev by postgresql-common'
Selecting previously unselected package postgresql-9.1.
Unpacking postgresql-9.1 (from .../postgresql-9.1_9.1.9-0ubuntu12.04_i386.deb) ...
Selecting previously unselected package postgresql.
Unpacking postgresql (from .../postgresql_9.1+129ubuntu1_all.deb) ...
Processing triggers for man-db ...
Processing triggers for ureadahead ...
Setting up libpq5 (9.1.9-0ubuntu12.04) ...
Setting up postgresql-client-common (129ubuntu1) ...
Setting up postgresql-client-9.1 (9.1.9-0ubuntu12.04) ...
update-alternatives: using /usr/share/postgresql/9.1/man/man1/psql.1.gz to provide /usr/share/man/man1/psql.1.gz (psql.1.gz) in auto mode.
Setting up postgresql-common (129ubuntu1) ...
supported_versions: WARNING! Unknown distribution: Trisquel
Please submit this as a bug report to your distribution.
Adding user postgres to group ssl-cert
Building PostgreSQL dictionaries from installed myspell/hunspell packages...
en_au
en_ca
en_gb
en_us
en_za
Setting up postgresql-9.1 (9.1.9-0ubuntu12.04) ...
Creating new cluster (configuration: /etc/postgresql/9.1/main, data: /var/lib/postgresql/9.1/main)...
Moving configuration file /var/lib/postgresql/9.1/main/postgresql.conf to /etc/postgresql/9.1/main...
Moving configuration file /var/lib/postgresql/9.1/main/pg_hba.conf to /etc/postgresql/9.1/main...
Moving configuration file /var/lib/postgresql/9.1/main/pg_ident.conf to /etc/postgresql/9.1/main...
Configuring postgresql.conf to use port 5432...
update-alternatives: using /usr/share/postgresql/9.1/man/man1/postmaster.1.gz to provide /usr/share/man/man1/postmaster.1.gz (postmaster.1.gz) in auto mode.
* Starting PostgreSQL 9.1 database server [ OK ]
Setting up postgresql (9.1+129ubuntu1) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place

I didn't know where to post this, so thought it best to post it here so everyone can chime in.

If possible, would like to fix this. Can someone advise how?

Thanks,

gsvolt