Revert "allow 0 for ISINT"

Florian Schaal

2016-01-10 0cd87e682012f224e2b74531190bb983fdcbb430

 interface/web/dns/form/dns_srv.tform.php

@@ -131,7 +131,7 @@
               'range' => '60:',
               'errmsg'=> 'ttl_range_error'),
         ),
         'default' => '86400',
         'default' => '3600',
         'value'  => '',
         'width'  => '10',
         'maxlength' => '10'