Use brace_style for macro_rules!

[Iron-E]

Sorry for opening so many issues at once here!

New macros don't adhere to brace_style. For example, when brace_style = "AlwaysNextLine", a macro_rules! will look like this:

macro_rules! filter_map_view {
  ($query:ident, $val:ident) => {

It should look like this:

macro_rules! filter_map_view
{
  ($query:ident, $val:ident) =>
  {

[calebcartwright]

Closing as per #4938 (comment)