clarify docs for :no_end_test
Revert "keep $no_end_tests off if it was ever turned off"

This reverts commit 8f655c36f36f9138c2b64c639e3fcbcc0fe896d3.
..which was added in the last release, just yesterday.
Actually we're going to keep the test we added, which turns out to work just
fine even without code changes.. we're just reverting the code change and the
changelog mention of it.
better test name
changelog for [Test::Compile] release
Test-Warnings-0.010

          - re-release with fixed compile test