Clarify null return scenario (#8788)

gabeluci · web-flow · commit 16a96e3748fd · 2023-01-19T14:43:31.000-08:00
Since this only returns security groups, it will still return null if the user is a member of distribution groups, but not security groups. So it's not entirely accurate to say that it will return "null if the user does not belong to *any* groups".
diff --git a/xml/System.DirectoryServices.AccountManagement/UserPrincipal.xml b/xml/System.DirectoryServices.AccountManagement/UserPrincipal.xml
@@ -533,7 +533,7 @@ ctx.Dispose();
       <Parameters />
       <Docs>
         <summary>Returns a collection of principal objects that contains all the authorization groups of which this user is a member. This function only returns groups that are security groups; distribution groups are not returned.</summary>
-        <returns>A collection of <see cref="T:System.DirectoryServices.AccountManagement.Principal" /> objects that contain the groups of which the user is a member, or null if the user does not belong to any groups.</returns>
+        <returns>A collection of <see cref="T:System.DirectoryServices.AccountManagement.Principal" /> objects that contain the groups of which the user is a member, or null if the user does not belong to any security groups.</returns>
         <remarks>
           <format type="text/markdown"><![CDATA[  
   
