Reformat using the new identifier sorting from rustfmt

compiler/rustc_fs_util/src/lib.rs

@@ -1,5 +1,5 @@
 use std::ffi::CString;
-use std::path::{absolute, Path, PathBuf};
+use std::path::{Path, PathBuf, absolute};
 use std::{fs, io};
 
 // Unfortunately, on windows, it looks like msvcrt.dll is silently translating