fix test

Author: glasstiger

test/sender.buffer.test.ts

@@ -262,7 +262,7 @@ describe("Sender message builder test suite (anything not covered in client inte
         [[1.1, 2.2], [3.3], [5.5, 6.6]],
       ]),
     ).toThrow(
-      "Length of arrays do not match [expected=2, actual=1, dimensions=[4,3,2], path=[3][1]]",
+      "Lengths of sub-arrays do not match [expected=2, actual=1, dimensions=[4,3,2], path=[3][1]]",
     );
     await sender.close();
   });