Merge #212

212: Update format_doc_comments to format_code_in_doc_comments r=kvark a=elrnv

Update unstable rustfmt feature `format_doc_comments` to its new name (See
rust-lang/rustfmt#3348).

Co-authored-by: Egor Larionov <[email protected]>

Author: bors[bot]

rustfmt.toml

@@ -3,7 +3,7 @@ merge_imports = true
 reorder_impl_items = true
 use_field_init_shorthand = true
 use_try_shorthand = true
-format_doc_comments = true
+format_code_in_doc_comments = true
 wrap_comments = true
 edition = "2018"
 version = "Two"