More complete example

htdocs/master.inc.php

@@ -84,7 +84,7 @@ if (! empty($dolibarr_main_document_root_alt))
 			print "\"/extensions\"<br>\n";
 			print "\"/extensions1,/extensions2,...\"<br>\n";
 			print "\"/../extensions\"<br>\n";
-			print "\"/custom\"<br>\n";
+			print "\"/dolibarr/custom\"<br>\n";
 			exit;
 		}
 		$conf->file->dol_url_root['alt'.($i++)]=(string) $value;