Schema inconsistency

I'm also using the Schema module, and when checking for consistency, backup_migrate gives two errors and two mismatches.

ERRORS:

backup_migrate_schedules.destination_id is type varchar but its default 0 is PHP type integer
backup_migrate_schedules.profile_id is type varchar but its default 0 is PHP type integer

MISMATCHES:
backup_migrate_profiles.append_timestamp

declared: array('description'=>t('TODO: please describe this field!'),'type'=>'int','unsigned'=>TRUE,'size'=>'tiny','length'=>1,'not null'=>TRUE,'default'=>0)
actual: array('description'=>t('TODO: please describe this field!'),'type'=>'int','unsigned'=>TRUE,'size'=>'tiny','disp-width'=>'1','not null'=>TRUE,'default'=>0)

backup_migrate_schedules.enabled

declared: array('description'=>t('TODO: please describe this field!'),'type'=>'int','unsigned'=>TRUE,'size'=>'tiny','length'=>1,'not null'=>TRUE,'default'=>0)
actual: array('description'=>t('TODO: please describe this field!'),'type'=>'int','unsigned'=>TRUE,'size'=>'tiny','disp-width'=>'1','not null'=>TRUE,'default'=>0)

backup_migrate_schedules.cron

declared: array('description'=>t('TODO: please describe this field!'),'type'=>'int','unsigned'=>TRUE,'size'=>'tiny','length'=>1,'not null'=>TRUE,'default'=>0)
actual: array('description'=>t('TODO: please describe this field!'),'type'=>'int','unsigned'=>TRUE,'size'=>'tiny','disp-width'=>'1','not null'=>TRUE,'default'=>0)

The issues are in the backup_migrate.install implementation of hook_schema().
The default of a varchar would be '0', not 0.
The property length does not affect numeric inputs.
See attached patch.