tree 32b56d53517b38b8fd28cbdf8650886eab10d9c4
parent 34b74fffb32493b49b262ed9122d798d373477b7
author Raymond Hettinger <python@rcn.com> 1473656548 -0700
committer Raymond Hettinger <python@rcn.com> 1473656548 -0700
HG:rename-source hg

Issue #28071: Add early-out for differencing from an empty set.