wp-cache file permissions

Hi,

I patched wp-cache.php to be able to drop write privileges on wp-content:

ipavkovic@acrux:~/wordpress/wp-content/plugins/wp-cache$ diff -u wp-cache.php.orig wp-cache.php
--- wp-cache.php.orig   2008-02-19 21:07:48.000000000 +0100
+++ wp-cache.php        2008-04-02 12:05:06.000000000 +0200
@@ -468,11 +468,11 @@
        $new = false;
        $dir = dirname($wp_cache_config_file);

-       if ( !is_writable($dir)) {
-                       echo "<b>Error:</b> wp-content directory (<b>$dir</b>) is not writable by the Web server.Check its permissions.";
-                       return false;
-       }
        if ( !file_exists($wp_cache_config_file) ) {
+               if ( !is_writable($dir)) {
+                               echo "<b>Error:</b> wp-content directory (<b>$dir</b>) is not writable by the Web server.Check its permissions.";
+                               return false;
+               }
                if ( !file_exists($wp_cache_config_file_sample) ) {
                        echo "<b>Error:</b> Sample WP-Cache config file (<b>$wp_cache_config_file_sample</b>) does not exist.Verify you installation.";
                        return false;

Best Regards