[horde] Setting of $conf['umask'] = 027 ignored for $conf['log']['type'] = 'file';

[Arjen de Korte]

In my horde/config/conf.php I have

   $conf['umask'] = 027;

and

   $conf['log']['type'] = 'file';
   $conf['log']['name'] = '/var/tmp/horde.log';

Yet the log file that is created, has the following permissions:

   -rw-r--r-- 1 wwwrun www 142941 Jan 30 21:28 /var/tmp/horde.log

The fact that it is created with world readable permissions confuses  
me. Why is that?
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