Doc comments separated inconsistently from definitions in interfaces

[hcarty]

When reformatting a doc comment attached to a value's type in an interface (.rei), refmt from the current master branch adds unwanted whitespace between the comment and the definition if the definition wraps. Otherwise there is no whitespace added between the comment and definition.

The following is the output from refmt, even if the empty line between the first doc comment and let some_definition is removed:

/** Hi I'm a doc comment for some_definition */

let some_definition:
  (
    ~what_a_long_label: M.its_a_type,
    ~just_need_to_make_this: long_enough_to_wrap
  ) =>
  unit;

/** Hi I'm a doc comment for another_definition */
let another_definition: unit => unit;

I'd personally prefer no empty line between the doc comment and definition, but in any case it would be nice if the spacing did not depend on the length/wrapping of the value definition.

[IwanKaramazow]

This is a bug, submitted a patch.