Fix doc comment (#37061)

Looks like a copy/paste error.

diff --git a/src/libraries/Microsoft.Extensions.Configuration.FileExtensions/src/FileConfigurationExtensions.cs b/src/libraries/Microsoft.Extensions.Configuration.FileExtensions/src/FileConfigurationExtensions.cs
index 2f9de72..8dadfc6 100644 (file)
--- a/src/libraries/Microsoft.Extensions.Configuration.FileExtensions/src/FileConfigurationExtensions.cs
+++ b/src/libraries/Microsoft.Extensions.Configuration.FileExtensions/src/FileConfigurationExtensions.cs
@@ -36,7 +36,7 @@ namespace Microsoft.Extensions.Configuration
         /// Gets the default <see cref="IFileProvider"/> to be used for file-based providers.
         /// </summary>
         /// <param name="builder">The <see cref="IConfigurationBuilder"/>.</param>
-        /// <returns>The <see cref="IConfigurationBuilder"/>.</returns>
+        /// <returns>The default <see cref="IFileProvider"/>.</returns>
         public static IFileProvider GetFileProvider(this IConfigurationBuilder builder)
         {
             if (builder == null)