dax: Reduce the scope of various variables

Where they are only used in loops or branches.

Signed-off-by: Andrew Clayton <andrew@dnsandmx.com>
tools: Reduce the scope of db_row in dump_mail_fwd_to_csv()

Signed-off-by: Andrew Clayton <andrew@dnsandmx.com>
url_handlers: Reduce the scope of various varaibles

Signed-off-by: Andrew Clayton <andrew@dnsandmx.com>
utils: Reduce the scope of various variables

Signed-off-by: Andrew Clayton <andrew@dnsandmx.com>
url_handlers: Fix an indentation snafu in paypal_ipn()

Signed-off-by: Andrew Clayton <andrew@dnsandmx.com>
url_handlers: Remove a redundant variable from backup_mx()

Remove the 'queue_sz' variable and assignment of. We take queue_sz
directly from the database into the html template.

Signed-off-by: Andrew Clayton <andrew@dnsandmx.com>