Parentheses are not added to function calls

[jonleighton]

This function call doesn't get formatted:

<%= foo "bar" %>

I think I would ideally expect the formatting to happen exactly as mix format does, which would mean this:

<%= foo("bar") %>

Ideally it would also obey formatting configuration in .formatter.exs.

Perhaps it's not such a good idea for templates though. There are probably a lot of template helpers that feel cleaner without the parens. So the current behaviour doesn't hugely offend me, but I thought I'd open an issue for discussion about what the desired behaviour should be here.

[adamzapasnik]

Hey @jonleighton
Currently, there is no formatting enabled for single line expressions. But it's something worth thinking about, thanks.