SWORDDEMO: Missing Demo subtitles

[IlDucci]

ScummVM version: 2.3.0git11098-gd70bdfa033
Language of game: Spanish
Version of game: Windows Demo
OS: Windows 10 x64 1809

It seems that the Demo-exclusive dialogues do not contain their respective texts for the subtitles:

• Line that appears to block the player from leaving Paris street "I wasn't going to head off all over Paris until I'd investigated some more.", or "No iba a empezar a recorrerme todo París hasta haber investigado algo más."
• Ending lines of the demo: "I wasn't sure what I was going to do when I caught up with that clown..." "...but before I knew it, I was drawn into a desperate race between two ruthless enemies." "The goal - the mysterious power of the Broken Sword.". The transcription is: "No estaba seguro de qué iba a hacer cuando alcanzara a ese payaso..." "... pero antes de que me diera tiempo a pensarlo, me encontré metido en una carrera desesperada entre dos enemigos sin piedad." "El objetivo: el misterioso poder de la Espada Rota."

This is the outputted errors:
WARNING: ObjectMan::lockText(6488080): text number has no text lines!
WARNING: Missing translation for textId 6488080 ("I wasn't going to head off all over Paris until I'd investigated some more.")!
WARNING: ObjectMan::lockText(6488081): text number has no text lines!
WARNING: Missing translation for textId 6488081 ("I wasn't sure what I was going to do when I caught up with that clown...")!
WARNING: ObjectMan::lockText(6488082): text number has no text lines!
WARNING: Missing translation for textId 6488082 ("...but before I knew it, I was drawn into a desperate race between two ruthless enemies.")!
WARNING: ObjectMan::lockText(6488083): text number has no text lines!
WARNING: Missing translation for textId 6488083 ("The goal - the mysterious power of the Broken Sword.")!

I guess this is the expected behavior, so... Is there a way to add these strings?

Also, some unavailable music files are called:
WARNING: Can't find music file 2m4!
WARNING: Can't find music file 2m5!
WARNING: Can't find music file 2m7!
WARNING: Can't find music file 2m9!
WARNING: Can't find music file 2m19!

[tag2015]

Subtitles added in PR ​4313

The music warnings are unrelated and also happen in the english demo.