[php-maint] Bug#407237: Recommends: php-net-smtp should be changed to Depends:

[Luis Parravicini]

Package: php-mail
Version: 1.1.6-2

php-net-smtp is required to use php-mail, but it's listed as a
recommended package.

To reproduce the error, create a php file (test.php)
================================
<?php
require_once 'Mail.php';

$headers['From'] = 'sender at example.com';
$headers['To'] = 'recipient at example.com';
$headers['Subject'] = 'Los mismos de siempre';
$body = 'Adonde vas, que buscas en el frio de la noche.';

$host = "mail.example.com";

$smtp = Mail::factory('smtp',  array('host' => $host));
$mail = $smtp->send($to, $headers, $body);

if (PEAR::isError($mail))
  echo($mail->getMessage());
else
  echo('Message sent');
?>
================================

Run it with 'php -f test.php' and it gives the following error:
================================
Warning: send(Net/SMTP.php): failed to open stream: No such file or
directory in /usr/share/php/Mail/smtp.php on line 157

Warning: send(): Failed opening 'Net/SMTP.php' for inclusion
(include_path='.:/usr/share/php:/usr/share/pear') in
/usr/share/php/Mail/smtp.php on line 157

Fatal error: Cannot instantiate non-existent class:  net_smtp in
/usr/share/php/Mail/smtp.php on line 159
================================

After installing php-net-smtp, the script runs without errors.