fix a bug where "invoke" alone (no args) wouldn't invoke the lastAttached action (regression)
diff --git a/client/lib/rewriter.js b/client/lib/rewriter.js
index 1efd99a..0f144c7 100644
--- a/client/lib/rewriter.js
+++ b/client/lib/rewriter.js
@@ -519,7 +519,7 @@
     var next = args.shift();
     var action = args.shift();
 
-    if (!action || action === '-p') {
+    if (!action || action === '-p' || action == 'invoke') {
 	//
 	// user did not provide an action
 	//