fs/df: cargo fmt

Author: jgarzik

fs/df.rs

@@ -161,7 +161,11 @@ fn read_mount_info() -> io::Result<MountList> {
             let mut mount: libc::statfs = std::mem::zeroed();
             let rc = libc::statfs(dirname.as_ptr(), &mut mount);
             if rc < 0 {
-                eprintln!("{}: {}", dirname.to_str().unwrap(), io::Error::last_os_error());
+                eprintln!(
+                    "{}: {}",
+                    dirname.to_str().unwrap(),
+                    io::Error::last_os_error()
+                );
                 continue;
             }