vim - nerdtree suddenly broke

Question

Nerdtree has suddenly started acting a little strange. As you can see in the s

Answer 1

A late solution: Tell vim to use utf-8 encoding and everything will be good, even the messy characters that appear on top of function and class folds But I agree with npiv, the + and - are much nicer than the fancy arrows :D

Add this to your .vimrc

set encoding=utf-8