Use prof-xx name to avoid issue on prof-20

generate_users.sh

@@ -28,7 +28,7 @@ do
     for l in $TEACH_LEVELS
     do
         gender=`[ $(( $RANDOM % 2 )) == 1 ] && echo "M" || echo "F"`
-        save_uid $i $l $l `randomgender` Profs
+        save_uid -$i $l $l `randomgender` Profs
     done
 done
 save_uid on directi direction `randomgender` Administratifs