What does it mean and how can I fix it?
zsh compinit: insecure directories, run compaudit for list. Ignore insecure directories and continue [y] or abort compini
The accepted answer did not work for me on macOs Sierra (10.12.1). Had to do it recursive from /usr/local
cd /usr/local sudo chown -R : *
Note: You can get your username with whoami and your group with id -g
whoami
id -g