Fix wrap_str
Fix wrap_str

Use shape.width for the first line and shape.used_width() for the last line.

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