Less: Where is my space?

[smile-xy]

Description

after beautification, the code cannot be calculated

Input

The code looked like this before beautification:

@light-blue: @nice-blue + #111;

Expected Output

The code should have looked like this after beautification:

@light-blue: @nice-blue + #111;

Actual Output

The code actually looked like this after beautification:

@light-blue: @nice-blue +#111;