message: Adjust test overrides_and_links.
  While order between rust-c-link-lib and rustc-flags was always undefined
  (for TOML configuration), order of link paths/libs within a single
  rustc-flags value was maintained. Now we sort them all.
diff: @@ -306,7 +306,7 @@ fn overrides_and_links() {
  [..]
  [..]
  [..]
  -[RUNNING] `rustc --crate-name foo [..] -L foo -L bar[..]`
  +[RUNNING] `rustc --crate-name foo [..] -L bar -L foo`
  [FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
  "));
  }
  