Formatting edoc elements

[paulo-ferraz-oliveira]

I usually write %% @private between a function's -spec(_). and its declaration, like so:

-spec add(A :: integer(), B :: integer()) -> integer().
%% @private
add(A, B) ->

erlfmt prefers it like

-spec add(A :: integer(), B :: integer()) -> integer().
    %% @private
add(A, B) ->

OTP code has pretty much no occurrences of %% @private, but some %% @private.

Should, generically speaking, %% @ be an exception to "comments"?

[paulo-ferraz-oliveira]

Oh, if %% @private is before -spec(_). the "issue" doesn't happen.

[awalterschulze]

This seems similar to a problem we have discovered before #94
I hope it is okay, if I close this and merge it in that issue.