Comment 1 for bug 390776

Update canonical.launchpad.validators.name.name_validator:
        message = _(dedent("""
            Invalid name '${name}'. Names must be at least two characters
            long, start with a letter or number and be lowercase. The
            characters <samp>+</samp>, <samp>-</samp> and <samp>.</samp> are
            also allowed after the first character."""),
            mapping={'name': escape(name)})