gdlint: mixed-tabs-and-spaces false detection on text blocks

[MikeSchulze]

Hi, I use very often text blocks to better format my inline text/templates.

Looks like gdlint do not handle text blocks.

var test := """
	Hello World
	  this is a message
	"""

error:

example.gd:4: Error: Mixed tabs and spaces (mixed-tabs-and-spaces)
Failure: 1 problem found

[Scony]

Yes, that's a bug.