edition: Update absolute paths to 2018 style

This is an easy step toward adopting 2018 edition eventually, and will
make any future CL that sets `edition = "2018"` this much smaller.

The module system changes in Rust 2018 are described here:

https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html

Generated by running:

    cargo fix --edition --all

in each workspace, followed by bin/fmt.

TEST=cargo check
TEST=cargo check --all-features
TEST=cargo check --target aarch64-unknown-linux-gnu

Change-Id: I000ab5e69d69aa222c272fae899464bbaf65f6d8
Reviewed-on: https://chromium-review.googlesource.com/1513054
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: David Tolnay <dtolnay@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: David Tolnay <dtolnay@chromium.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/sys_util/src/mmap.rs b/sys_util/src/mmap.rs
index f35215d..9eec72e 100644
--- a/sys_util/src/mmap.rs
+++ b/sys_util/src/mmap.rs
@@ -11,12 +11,11 @@ use std::io::{Read, Write};
 use std::os::unix::io::AsRawFd;
 use std::ptr::null_mut;
 
-use libc::{self, c_int};
-
-use errno;
-
 use data_model::volatile_memory::*;
 use data_model::DataInit;
+use libc::{self, c_int};
+
+use crate::errno;
 
 #[derive(Debug)]
 pub enum Error {