lint: fix trailing line endings

Author: abn

.flake8

@@ -12,4 +12,4 @@ exclude =
     .pytest_cache
     .github
     _legacy
-    _internal
+    _internal

CONTRIBUTING.md

@@ -12,8 +12,8 @@ make update
 ```
 
 ### gNMI Target Server
-You can use the [google/gnxi/gnmi_target](https://github.com/google/gnxi/tree/master/gnmi_target) to test the client 
-code. You can set this up using the the following commands (assuming you have ``golang` and `GOPATH` configured 
+You can use the [google/gnxi/gnmi_target](https://github.com/google/gnxi/tree/master/gnmi_target) to test the client
+code. You can set this up using the the following commands (assuming you have ``golang` and `GOPATH` configured
 correctly).
 
 #### Installation
@@ -23,7 +23,7 @@ go install -v github.com/google/gnxi/gnmi_target
 ```
 
 #### Sample Configuration
-You can use the provided [sample configuration](tests/integration/fixtures/config.json). If you do not have a local copy 
+You can use the provided [sample configuration](tests/integration/fixtures/config.json). If you do not have a local copy
 of the repository, fetch it using `curl`.
 
 ```sh

README.md

@@ -7,25 +7,25 @@
 
 This project aims to be a base building block for [gNMI](https://github.com/openconfig/gnmi) projects written in Python.
 
-The process of building pythonic libraries and applications using [gRPC](https://grpc.io/) and [Protocol Buffers](https://developers.google.com/protocol-buffers) 
-have been fragmented. This often means that a developer needs to copy over `proto` files, generate Python source from 
-these using `protoc` and use them in-tree for their project. There already exists several projects built in this fashion. 
+The process of building pythonic libraries and applications using [gRPC](https://grpc.io/) and [Protocol Buffers](https://developers.google.com/protocol-buffers)
+have been fragmented. This often means that a developer needs to copy over `proto` files, generate Python source from
+these using `protoc` and use them in-tree for their project. There already exists several projects built in this fashion.
 While functional, these can be hard to reuse or maintain, often times resulting stale code and no versioning.
 
-`gnmi-proto` builds on top of the improvement already done by [betterproto](https://pypi.org/project/betterproto/) and 
-in turn by the [grpclib](https://pypi.org/project/grpclib/) library. Here, we make available, as versioned packages, 
+`gnmi-proto` builds on top of the improvement already done by [betterproto](https://pypi.org/project/betterproto/) and
+in turn by the [grpclib](https://pypi.org/project/grpclib/) library. Here, we make available, as versioned packages,
 code generated from [gNMI protocol buffers](https://github.com/openconfig/gnmi/tree/master/proto).
 
-The default implementation makes use of the [betterproto](https://pypi.org/project/betterproto/) `protoc` plugin to 
-generate clean modern code. In addition, this also provides a `gnmi.proto.legacy` module exposing code generated by 
+The default implementation makes use of the [betterproto](https://pypi.org/project/betterproto/) `protoc` plugin to
+generate clean modern code. In addition, this also provides a `gnmi.proto.legacy` module exposing code generated by
 `protoc` using the the in-built Python generator.
 
 ## Example Usage
 ### Client
 The following code expects a server at `127.0.0.1:9339` with the [test configuration](https://github.com/python-gnxi/python-gnmi-proto/blob/master/tests/integration/fixtures/config.json). Refer to [gNMI Target Server](https://github.com/python-gnxi/python-gnmi-proto/blob/master/CONTRIBUTING.md#gnmi-target-server) section in [CONTRIBUTING.md](https://github.com/python-gnxi/python-gnmi-proto/blob/master/CONTRIBUTING.md) for information on how to set it up.
 
 #### Using betterproto and grpclib
-```py  
+```py
 import gnmi.proto
 import grpclib.client
 
@@ -35,7 +35,7 @@ async def main():
     service = gnmi.proto.gNMIStub(
         channel, metadata={"username": "admin", "password": "secret"}
     )
-    
+
     response = await service.capabilities()
     print(response.to_json(indent=2))