`fmt::Formatter::pad`: don't call chars().count() more than one time
`fmt::Formatter::pad`: don't call chars().count() more than one time

graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust