scrooloose/nerdtree — comment on commit 49b88757b019143ec6604b35c399de8f9bd2d954
File:  line 0
By ggustafsson:

Actually, what i wrote above was just a copy & paste error. I did type the right thing. The problem was that i had used NERDTree once and tried to change the setting after that. It doesn't stick. Changing the setting before running NERDTree makes it work.