some cleanup of the project (#2063)

Octokit.Reactive/Clients/ObservableRepoCollaboratorsClient.cs

@@ -89,7 +89,7 @@ namespace Octokit.Reactive
         public IObservable<User> GetAll(long repositoryId, ApiOptions options)
         {
             Ensure.ArgumentNotNull(options, nameof(options));
-            
+
             return GetAll(repositoryId, new RepositoryCollaboratorListRequest(), options);
         }
 
@@ -108,7 +108,7 @@ namespace Octokit.Reactive
             Ensure.ArgumentNotNullOrEmptyString(owner, nameof(owner));
             Ensure.ArgumentNotNullOrEmptyString(name, nameof(name));
             Ensure.ArgumentNotNull(request, nameof(request));
-            
+
             return GetAll(owner, name, request, ApiOptions.None);
         }
 
@@ -124,7 +124,7 @@ namespace Octokit.Reactive
         public IObservable<User> GetAll(long repositoryId, RepositoryCollaboratorListRequest request)
         {
             Ensure.ArgumentNotNull(request, nameof(request));
-            
+
             return GetAll(repositoryId, request, ApiOptions.None);
         }