mkm3u: Allow explicit setting of series-name separator.

[epls] / fawlty-towers.epls

;;; -*-fundamental-*-

!title Fawlty Towers
!explen 31:00/10%

!season 1
!dvd F/Fawlty Towers/Series One.iso
1       A Touch of Class
2       The Builders
3       The Wedding Party
4       The Hotel Inspectors
5       Gourmet Night
6       The Germans

!season 2
!dvd F/Fawlty Towers/Series Two.iso
1       Communication Problems
2,l=36:00 The Psychiatrist
3       Waldorf Salad
4       The Kipper and the Corpse
5       The Anniversary
6       Basil the Rat