cubicweb #342931 db-dump with mysql [rejected]

When I run db-dump command with mysql, I obtain :

mysqldump -h None -u steph -p -r /tmp/toto_inst-2009-04-24_16:15:28.dump toto Enter password: mysqldump: Got error: 2005: Unknown MySQL server host 'None' (1) when trying to connect error while backuping the base

The same error occured when I comment the line "db-host=" in the sources file.

It works, if I run "mysqldump -u steph -p -r /tmp/toto_inst-2009-04-24_16:15:28.dump toto" directly

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