fix nested groups script

bin/Get-ADUserNestedGroups.ps1

@@ -33,7 +33,7 @@ If($ADObject)
             $Groups +=  $CurrentGroup;
 
             #Get recursive groups.      
-            $Groups = Get-ADUserNestedGroups -DistinguishedName $GroupDistinguishedName -Groups $Groups;
+            $Groups = &$PSCommandPath -DistinguishedName $GroupDistinguishedName -Groups $Groups;
         } elseif ($Duplicates) {
             "Duplicate: $($CurrentGroup.DistinguishedName)" | Out-Host
         }