rustfmt: Move getopts::Options creation to its own function
rustfmt: Move getopts::Options creation to its own function

Emilgardis/rustfmt,graydon/rust,SingingTree/rustfmt,graydon/rust,flutterhash/rustfmt,graydon/rust,graydon/rust,SingingTree/rustfmt,aidancully/rust,studoot/rustfmt,rust-lang/rustfmt,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,Emilgardis/rustfmt,studoot/rustfmt,graydon/rust,aidancully/rust,rust-lang/rustfmt,aidancully/rust