message: Condense testing bullets in CHANGELOG
diff: @@ -173,11 +173,10 @@ Version 4.2.1 (development)
  mixed meshes. The LOR Transfer miniapp (miniapps/tools/lor-transfer.cpp) now
  supports meshes with any element geometry.
  -- Gitlab CI: use Spack (and Uberenv) to automate the build of TPLs.
  -
  -- GitHub Action: Translated the CI logic from Travis to GitLab CI.
  -
  -- Githooks: Add a directory with suggested githooks for developpers.
  +- Testing improvements:
  + * Transitioned from Travis to GitHub Action for testing/CI on GitHub.
  + * Use Spack (and Uberenv) to automate building of TPLs in LLNL GitLab tests.
  + * Added a set of suggested git hooks for developers in config/githooks.
  - Added new miniapps demonstrating: 1) the use of GSLIB for overlapping grids,
  see gslib/schwarz_ex1, and 2) coupling different physics in different domains,
  