Bug 23144: Replace missing =cut in svc/header

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit 5168edaf1e)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit 53e4bc8c23)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>

svc/barcode

@@ -87,6 +87,8 @@ below the scannable barcode.
 
 =back
 
+=cut
+
 my $input = new CGI;
 
 my ( $auth_status, $sessionID ) = check_cookie_auth( $input->cookie('CGISESSID'), { catalogue => '*' } );