PR Feedback - better changelog entry

Co-authored-by: Vishwesh Bankwar <[email protected]>

src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md

@@ -5,7 +5,7 @@
 * Fix native AoT warnings in `OpenTelemetry.Exporter.OpenTelemetryProtocol`.
   ([#5520](https://github.com/open-telemetry/opentelemetry-dotnet/pull/5520))
 
-* `User-Agent` header changed from
+* `User-Agent` header format changed from
   `OTel-OTLP-Exporter-Dotnet/{NuGet Package Version}+{Commit Hash}`
   to `OTel-OTLP-Exporter-Dotnet/{NuGet Package Version}`.
   ([#5528](https://github.com/open-telemetry/opentelemetry-dotnet/pull/5528))