Add CHANGELOG for 2658 (#2666)

Author: mortenpi

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * Don't require custom themes to set a color for the 'todo' admonition. ([#2576])
 * Entries in `@repl` blocks that were hidden with `# hide` no longer produce erroneous empty lines ([#1521], [#2054], [#2399])
+* Fix the printed log message for missing docstring errors. ([#2658])
 
 ## Version [v1.9.0] - 2025-03-17
 
@@ -1991,6 +1992,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [#2651]: https://github.com/JuliaDocs/Documenter.jl/issues/2651
 [#2652]: https://github.com/JuliaDocs/Documenter.jl/issues/2652
 [#2656]: https://github.com/JuliaDocs/Documenter.jl/issues/2656
+[#2658]: https://github.com/JuliaDocs/Documenter.jl/issues/2658
 [JuliaLang/julia#36953]: https://github.com/JuliaLang/julia/issues/36953
 [JuliaLang/julia#38054]: https://github.com/JuliaLang/julia/issues/38054
 [JuliaLang/julia#39841]: https://github.com/JuliaLang/julia/issues/39841