le-proinfodata: fix my error in sed

Signed-off-by: Lucas Vinicius Semprebom Gonçalves <lucass.semprebom@gmail.com>

le-proinfodata/package/DEBIAN/control

 Package: le-proinfodata
-Version: 1.2.39
+Version: 1.2.41
 Maintainer: <proinfodata@c3sl.ufpr.br>
 Architecture: i386
 Section: main

le-proinfodata/package/DEBIAN/postinst

@@ -59,7 +59,7 @@ if [[ ! -d $MULTISEAT_DIR ]]; then
             /etc/lightdm/lightdm.conf
     fi
 else
-    sed -i '\,session-setup-script=/usr/local/bin/exec_dialog.sh/d' \ 
+    sed -i '\,session-setup-script=/usr/local/bin/exec_dialog.sh,d' \ 
         /etc/lightdm/lightdm.conf
 fi