Modifying `reorder_extern_crates` example to show effect on groups
Modifying `reorder_extern_crates` example to show effect on groups

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