Hello i try like this but it seem to be doesn't work.

# WEB

group = optparse.OptionGroup(parser, "Web interface Configuration")

#comment the original code by Chau Le

#group.add_option("--db-filter", dest="dbfilter", my_default='.*',

group.add_option("--db-filter", dest="dbfilter", my_default='-',

help="Filter listed database", metavar="REGEXP") parser.add_option_group(group)

Try to edit /usr/lib/python2.7/site-packages/odoo/tools/config.py and change:

From:

# WEB        group = optparse.OptionGroup(parser, "Web interface Configuration")        group.add_option("--db-filter", dest="dbfilter", my_default='.*'.

To:

# WEB        group = optparse.OptionGroup(parser, "Web interface Configuration")        group.add_option("--db-filter", dest="dbfilter", my_default='-'.

...and then restart your Odoo.