Allow last child in chain to go multiline
Allow last child in chain to go multiline

graydon/rust,SingingTree/rustfmt,aidancully/rust,SingingTree/rustfmt,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,rust-lang/rustfmt,graydon/rust,rust-lang/rustfmt,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust