Now, it is hard-coded as `find -L`. It is better if we can customize that through like option `g:fern#mapping#fzf#command`. Like `FZF_CTRL_T_COMMAND`.
Now, it is hard-coded as
find -L.It is better if we can customize that through like option
g:fern#mapping#fzf#command. LikeFZF_CTRL_T_COMMAND.