(MT #6181) Dead link in Checked-In items

The line for patron, when the item needs to be transfered, and the transfer is done, appears like a blank link with parenthesis.
This patch in this case, shows "Not checked out".
(cherry picked from commit 6b2d8a7)

koha-tmpl/intranet-tmpl/prog/en/modules/circ/returns.tmpl

@@ -439,7 +439,7 @@ function Dopop(link) {
             <td><!-- TMPL_VAR NAME="holdingbranch" --></td>
             <td><!-- TMPL_VAR NAME="itemlocation" --></td>
             <td><!-- TMPL_VAR NAME="itemcallnumber" --></td>
-			<td><!-- TMPL_IF Name="duedate" -->
+			<td><!-- TMPL_IF Name="borsurname" -->
                 <a href="/cgi-bin/koha/circ/circulation.pl?borrowernumber=<!-- TMPL_VAR Name="borrowernumber" -->">
                     <!-- TMPL_VAR Name="borsurname" -->, <!-- TMPL_VAR Name="borfirstname" --> (<!-- TMPL_VAR name="borcategorycode" -->)
                 </a>