nginx 0.7.2 *) Feature: now nginx supports EDH key exchange ciphers. *) Feature: the "ssl_dhparam" directive. *) Feature: the $ssl_client_cert variable. Thanks to Manlio Perillo. *) Bugfix: after changing URI via a "rewrite" directive nginx did not search a new location; bug appeared in 0.7.1. Thanks to Maxim Dounin. *) Bugfix: nginx could not be built without PCRE library; bug appeared in 0.7.1. *) Bugfix: when a request to a directory was redirected with the slash added, nginx dropped a query string from the original request.

--- a/src/http/modules/ngx_http_log_module.c
+++ b/src/http/modules/ngx_http_log_module.c
@@ -797,7 +797,10 @@ ngx_http_log_set_format(ngx_conf_t *cf, 
         if (fmt[i].name.len == value[1].len
             && ngx_strcmp(fmt[i].name.data, value[1].data) == 0)
         {
-            return "duplicate \"log_format\" name";
+            ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                               "duplicate \"log_format\" name \"%V\"",
+                               &value[1]);
+            return NGX_CONF_ERROR;
         }
     }