Explicitly document the behavior of a few core functions like every? on empty or 1-element colls
For example, while it might seem obvious to some that (every? pred ) returns true, it would be nice to make it explicit in the doc string.
Patch clj-2542-fix-v1.patch is a proposed addition of once sentence to the doc strings of each of every? not-every? and distinct? to explicitly document their behavior in edge cases.