Multiline function definition without brace

[krlmlr]

styler::style_text("function()\nNULL")
#> function()
#> NULL

The NULL should be indented at least, maybe it should even receive braces or be moved one line up.

[lorenzwalthert]

I think moving one line up would be the simplest but maybe the function was intentionally put on a new line, e.g. if not everything does fit all on one line.

[lorenzwalthert]

Similar to #191 as far as adding braces goes.