Formatter inserts an extra blank line before documentation comments

[minami110]

version: 0.10.0

When formatting the following code:

extends Node2D
## A brief description of the class's role and functionality.
##
## The description of script

the formatter outputs:

extends Node2D

## A brief description of the class's role and functionality.
##
## The description of script

This is a very minor, non-functional style change.
However, according to the Godot documentation on GDScript documentation comments, the official examples show no blank line between the extends statement and the brief doc comment.

It might be preferable for the formatter to follow the official style and avoid adding this extra blank line.