Reader should send undef as requested type if all messages wanted, not "_all_" nor "_any_"

src/contrib/warden-app/WardenApp/Constants.pm

@@ -16,7 +16,7 @@ our %DEFAULTS =
                         GENERAL_method          =>  ( "stdout" ),
                         GENERAL_logfile         =>  "var/log/receiver.log",
                         GENERAL_wardenpath      =>  "/opt/warden/client",
-                        GENERAL_requested_type  =>  "_all_",
+                        GENERAL_requested_type  =>  "",
                         
                         FILE_directory          =>  "var/fileout/",
                         FILE_method             =>  "append",

src/contrib/warden-app/bin/warden-receiver.pl

@@ -13,7 +13,7 @@ use WardenApp::Constants;
 use constant GENERAL_CONFIG_FILE => "$Bin/../etc/receiver.conf";
 use constant DB_CONFIG_FILE => "$Bin/../etc/db.conf";
 use constant RECEIVER_SECTION => 'receiver';
-use constant DEFAULT_REQ_ALL => "_all_";
+use constant DEFAULT_REQ_ALL => undef;
 
 use constant TRUE   => 1;
 use constant FALSE  => 0;