Format with nightly rustfmt-preview, then with rustfmt-0.9 again.

lib/filetests/src/test_legalizer.rs

@@ -3,13 +3,13 @@
 //! The `test legalizer` test command runs each function through `legalize_function()` and sends
 //! the result to filecheck.
 
-use std::borrow::Cow;
 use cretonne;
 use cretonne::ir::Function;
 use cretonne::print_errors::pretty_error;
 use cton_reader::TestCommand;
-use subtest::{run_filecheck, Context, Result, SubTest};
+use std::borrow::Cow;
 use std::fmt::Write;
+use subtest::{run_filecheck, Context, Result, SubTest};
 
 struct TestLegalizer;