Hi, I would like to report an issue regarding the exported PDF file in the Scheduler module. Here is the replication steps:

1. Go to a course and turn editing on
2. Click “Add an activity or resource”, then select “Scheduler”
3. Fill the Name and click “Save and display”
4. Schedule in a student using the "Schedule in slot" [screenshot]
5. Save the changes of the scheduled appointment.
6. Click the "Export" tab [screenshot]
7. Under the "File format" section select 'PDF' [screenshot]
   1. Note that both 'The page orientation' options produce the issue

Observed output: Extra top horizontal border line after the attended column.

Expected output: No extra borderline.