pandoc-2.15: 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." ] ]
```