thread panics when called from root ('/') directory

[TomLebeda]

I really like this program, just a (small?) issue I found:

when I do cd / and then et, I get this panic:

[tom@tom-pc ~]$ cd /
[tom@tom-pc /]$ et
thread '<unnamed>' panicked at 'called `Option::unwrap()` on a `None` value', /home/tom/.cargo/registry/src/github.com-1ecc6299db9ec823/erdtree-1.2.0/src/fs/erdtree/node.rs:220:25
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Any { .. }', /home/tom/.cargo/registry/src/github.com-1ecc6299db9ec823/ignore-0.4.20/src/walk.rs:1302:31
^C

[solidiquis]

Thank you bringing this to my attention! I just merged in a fix and will include it in the next minor version bump later today. Again tysm! :]