WordPress Version: 5.3
/**
* Displays the out of storage quota message in Multisite.
*
* @since 3.5.0
*/
function multisite_over_quota_message()
{
echo '<p>' . sprintf(
/* translators: %s: Allowed space allocation. */
__('Sorry, you have used your space allocation of %s. Please delete some files to upload more files.'),
size_format(get_space_allowed() * MB_IN_BYTES)
) . '</p>';
}