rust-lang/rust — pull request #20264 by nagisa (2014-12-28 00:29:05+00:00)
Title: Rename TaskRng to ThreadRng

Since runtime is removed, rust has no tasks anymore and everything is moving
from being task-* to thread-*. Let’s rename TaskRng as well!

This is a breaking change. If a breaking change for consistency is not desired, feel free to close.