pass last result to while/until callback

incorporate @thanodnl suggestions to pass all args

also tidy up the test changes

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/async.js b/lib/async.js
index 5c17819..08af693 100644
--- a/lib/async.js
+++ b/lib/async.js
@@ -781,7 +781,7 @@
                 } else if (test.apply(this, args)) {
                     iterator(next);
                 } else {
-                    callback(null);
+                    callback.apply(null, [null].concat(args));
                 }
             });
             iterator(next);