[pcwalton]

Rob Pike's authority does not counter the negative experience I've had with vendoring dependencies, making local changes, and drifting so far from upstream that it becomes extremely difficult to merge in bugfixes. Or the positive experience I've had with package managers making it easy to bring in third-party code, easier than copying it in.

[joevandyk]

little dependency is the keyword.

[pcwalton]

Little dependencies are fine. In fact, they're usually preferable: it leads to less code going unused.