translation fix

src/www/system_groupmanager.php

@@ -520,10 +520,10 @@ $( document ).ready(function() {
                 <tr  class="hidden-xs">
                   <td colspan="4">
                     <p class="col-xs-12 col-sm-10">
-                      <?=gettext("Additional webConfigurator groups can be added here.
-                      Group permissions can be assigned which are inherited by users who are members of the group.
-                      An icon that appears grey indicates that it is a system defined object.
-                      Some system object properties can be modified but they cannot be deleted.");?>
+                      <?=gettext('Additional webConfigurator groups can be added here. ' .
+                      'Group permissions can be assigned which are inherited by users who are members of the group. ' .
+                      'An icon that appears grey indicates that it is a system defined object. ' .
+                      'Some system object properties can be modified but they cannot be deleted.');?>
                     </p>
                   </td>
                 </tr>