Submitted the file upstream - hopefully it will get fixed there soon. Either way, adding the file to /home/username/.local/share/gtksourceview-3.0/language-specs fixes it, if anyone is in a hurry to use it.
Submitted the file upstream - hopefully it will get fixed there soon. .local/ share/gtksource view-3. 0/language- specs fixes it, if anyone is in a hurry to use it.
Either way, adding the file to /home/username/