Fix showmovement help

wiaflos/client/cmdline/Inventory.pm

@@ -80,7 +80,7 @@ our $pluginInfo = {
 					MenuItem 	=> "ShowMovement",
 					Regex		=> "showmovement",
 					Desc		=> "Show inventory item movement",
-					Help		=> 'show item="<product code>" [serial="<serial number>"]',
+					Help		=> 'showmovement item="<product code>" [serial="<serial number>"]',
 					Function	=> \&showMovement,
 				},
 				{