mkm3u: Format episode numbers correctly when paired.

[epls] / drwho-crusade.epls

;;; -*-fundamental-*-

!adir D/Doctor Who—The Lost TV Episodes (audio)/S02E06 P. The Crusade
!iso D/Doctor Who—Lost in Time/01. Hartnell era.iso
!explen 25:00/6%

10      The Lion
-       The Knight of Jaffa
7       The Wheel of Fortune
-       The Warlords