pandoc-2.0.5: test/command/4134.md

```
% pandoc -f latex -t native
Hello.\
world.
^D
[Para [Str "Hello.\160world."]]
```

```
% pandoc -f latex -t native
Hello.\  
 world.
^D
[Para [Str "Hello.\160world."]]
```

```
% pandoc -f latex -t native
Hello.\

World.
^D
[Para [Str "Hello.\160"]
,Para [Str "World."]]
```