Be precise with one_line_budget for fn_base
Be precise with one_line_budget for fn_base

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