Fix typo in doc comment.

R=nweiz@google.com

Review URL: https://codereview.chromium.org//214663010

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/json_rpc_2@34720 260f80e4-7a28-3924-810f-c04153c831b5
2 files changed
tree: fcc7172c3f30dd9e05b83f6b3fc9277e7e109a69
  1. pkgs/