Updated null dsipaly text

web/SystemAO/disk/samba.html

@@ -200,7 +200,7 @@
                     <tr>
                         <td>${item.Name}</td>
                         <td>${item.Path} <span class="editButton" onclick="editSharePath('${item.Name}', '${item.Path}');"><i class="edit icon"></i></span></td>
-                        <td>${(item.ValidUsers!=null)?item.ValidUsers.join(", "):'<i class="ui grey user icon"></i> Unix user'} ${(item.ValidUsers!=null)?`<span class="shareuserEditBtn editButton" onclick="editSambaUser(this, '${item.Name}');" users="${userListHex}"><i class="edit icon"></i></span>`:""}</td>
+                        <td>${(item.ValidUsers!=null)?item.ValidUsers.join(", "):'[unix user]'} ${(item.ValidUsers!=null)?`<span class="shareuserEditBtn editButton" onclick="editSambaUser(this, '${item.Name}');" users="${userListHex}"><i class="edit icon"></i></span>`:""}</td>
                         <td>${item.ReadOnly?'<i class="ui green check icon"></i>':'<i class="ui red times icon"></i>'}</td>
                         <td>${item.Browseable?'<i class="ui green check icon"></i>':'<i class="ui red times icon"></i>'}</td>
                         <td>${item.GuestOk?'<i class="ui green check icon"></i>':'<i class="ui red times icon"></i>'}</td>