add otlp entrypoint for logs (#2322)

* add `otlp` entrypoint for logs

To be in-line with the trace exporter.

* update changelog

* add newline

Author: Alex Boten

CHANGELOG.md

@@ -16,6 +16,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#2307](https://github.com/open-telemetry/opentelemetry-python/pull/2307))
 - Adding OTEL_LOGS_EXPORTER environment variable
   ([#2320](https://github.com/open-telemetry/opentelemetry-python/pull/2320))
+- Add otlp entrypoint for log exporter
+  ([#2322](https://github.com/open-telemetry/opentelemetry-python/pull/2322))
 
 ## [1.7.1-0.26b1](https://github.com/open-telemetry/opentelemetry-python/releases/tag/v1.7.0-0.26b0) - 2021-11-11
 

exporter/opentelemetry-exporter-otlp/setup.cfg

@@ -45,3 +45,5 @@ install_requires =
 [options.entry_points]
 opentelemetry_traces_exporter =
     otlp = opentelemetry.exporter.otlp.proto.grpc.trace_exporter:OTLPSpanExporter
+opentelemetry_logs_exporter =
+    otlp = opentelemetry.exporter.otlp.proto.grpc._log_exporter:OTLPLogExporter