`more` crashes when attempting more lines than terminal lines

Running something like:

```
for i in {1..100..1}; do echo "$i"; done | cargo run -- more
```

or 

```
cat Cargo.toml Cargo.lock | cargo run -- more
```

Will just crash with 

```
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: IoError(Custom { kind: Other, error: "Failed to initialize input reader" })', src/uu/more/src/more.rs:235:51
```