Sort headers when displaying them
Sort headers when displaying them

Summary: It's easier to scan the same header value of multiple requests when it's in roughly the same place for each one.

Reviewed By: mweststrate

Differential Revision: D24885172

fbshipit-source-id: 7be02903d2f9f79c8ba618e57c74169392f6244b

facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper