message: changelog: 1.5.2
diff: +1.5.2 (2021-05-01)
  +==================
  +This release fixes a performance bug when Unicode word boundaries are used.
  +Namely, for certain regexes on certain inputs, it's possible for the lazy DFA
  +to stop searching (causing a fallback to a slower engine) when it doesn't
  +actually need to.
  +
  +[PR #768](https://github.com/rust-lang/regex/pull/768) fixes the bug, which was
  +originally reported in
  +[ripgrep#1860](https://github.com/BurntSushi/ripgrep/issues/1860).
  +
  +
  1.5.1 (2021-04-30)
  ==================
  This is a patch release that fixes a compilation error when the `perf-literal`
  