Suppress "no index file" errors when autoindex on

[Nikolaos Milas]

Hello,

Can we suppress errors of the form:

2013/11/19 10:14:58 [error] 21848#0: *49602 
"/path/to/web/root/DATA/2013/320/index.php" is not found (2: No such 
file or directory), client: ::ffff:xxx.xxx.154.69, server: 
www.example.com, request: "GET /location/path/2013/320/ HTTP/1.1", host: 
"www.example.com"

...when Autoindex is on? In these cases, we want clients to browse the 
directory for data and there is simply no index page available.

Please advise.

Thanks,
Nick