fix more warnings

Author: gewarren

xml/Microsoft.Extensions.DependencyInjection/ServiceProviderOptions.xml

@@ -65,7 +65,7 @@
       </ReturnValue>
       <Docs>
         <summary>
-            Gets or sets a value that indicates whether validation is performed to ensure all services can be created when <see cref="M:BuildServiceProvider(IServiceCollection,ServiceProviderOptions)" /> is called.
+            Gets or sets a value that indicates whether validation is performed to ensure all services can be created when <see cref="M:Microsoft.Extensions.DependencyInjection.ServiceCollectionContainerBuilderExtensions.BuildServiceProvider(Microsoft.Extensions.DependencyInjection.IServiceCollection,Microsoft.Extensions.DependencyInjection.ServiceProviderOptions)" /> is called.
             </summary>
         <value>
           <see langword="true" /> if validation is performed to ensure all services can be created during a <see cref="M:Microsoft.Extensions.DependencyInjection.ServiceCollectionContainerBuilderExtensions.BuildServiceProvider(Microsoft.Extensions.DependencyInjection.IServiceCollection,Microsoft.Extensions.DependencyInjection.ServiceProviderOptions)" /> call; otherwise, <see langword="false" />. The default is the value of <see cref="M:Microsoft.Extensions.Hosting.HostingEnvironmentExtensions.IsDevelopment(Microsoft.Extensions.Hosting.IHostingEnvironment)" />.</value>

xml/Microsoft.Extensions.FileProviders.Physical/PhysicalFilesWatcher.xml

@@ -153,7 +153,7 @@
                 <paramref name="filter" /></para>
           <para>
                 Globbing patterns are relative to the root directory given in the constructor
-                <seealso cref="M:Microsoft.Extensions.FileProviders.Physical.PhysicalFilesWatcher.#ctor(System.String,System.IO.FileSystemWatcher,System.Boolean)" />. Globbing patterns
+                <see cref="M:Microsoft.Extensions.FileProviders.Physical.PhysicalFilesWatcher.#ctor(System.String,System.IO.FileSystemWatcher,System.Boolean)" />. Globbing patterns
                 are interpreted by <see cref="T:Microsoft.Extensions.FileSystemGlobbing.Matcher" />.
                 </para>
         </summary>

xml/Microsoft.Extensions.FileProviders/PhysicalFileProvider.xml

@@ -303,7 +303,7 @@
             By default, <see cref="T:Microsoft.Extensions.FileProviders.PhysicalFileProvider" />  uses <see cref="T:System.IO.FileSystemWatcher" /> to listen to file change events
             for <see cref="M:Microsoft.Extensions.FileProviders.PhysicalFileProvider.Watch(System.String)" />. <see cref="T:System.IO.FileSystemWatcher" /> is ineffective in some scenarios such as mounted drives.
             Polling is required to effectively watch for file changes.
-            </para><seealso cref="P:Microsoft.Extensions.FileProviders.PhysicalFileProvider.UseActivePolling" />.
+            </para>
             </summary>
         <value>
             The default value of this property is determined by the value of environment variable named <c>DOTNET_USE_POLLING_FILE_WATCHER</c>.

xml/Microsoft.Extensions.Hosting/IHost.xml

@@ -53,7 +53,7 @@
       </ReturnValue>
       <Docs>
         <summary>
-            Gets the services configured for the program (for example, using <see cref="M:HostBuilder.ConfigureServices(Action&lt;HostBuilderContext,IServiceCollection&gt;)" />).
+            Gets the services configured for the program (for example, using <see cref="M:Microsoft.Extensions.Hosting.HostBuilder.ConfigureServices(System.Action{Microsoft.Extensions.Hosting.HostBuilderContext,Microsoft.Extensions.DependencyInjection.IServiceCollection})" />).
             </summary>
         <value>To be added.</value>
         <remarks>To be added.</remarks>
@@ -81,7 +81,7 @@
         <param name="cancellationToken">Used to abort program start.</param>
         <summary>
             Starts the <see cref="T:Microsoft.Extensions.Hosting.IHostedService" /> objects configured for the program.
-            The application will run until interrupted or until <see cref="M:IHostApplicationLifetime.StopApplication()" /> is called.
+            The application will run until interrupted or until <see cref="M:Microsoft.Extensions.Hosting.IHostApplicationLifetime.StopApplication" /> is called.
             </summary>
         <returns>A <see cref="T:System.Threading.Tasks.Task" /> that will be completed when the <see cref="T:Microsoft.Extensions.Hosting.IHost" /> starts.</returns>
         <remarks>To be added.</remarks>