rustfmt the code

src/uu/lscpu/src/lscpu.rs

@@ -1,6 +1,6 @@
-use sysinfo::{System};
 use regex::Regex;
 use std::fs;
+use sysinfo::System;
 
 fn main() {
     let system = System::new_all();

src/uu/renice/src/renice.rs

@@ -1,9 +1,8 @@
+use libc::{c_char, c_int, execvp, PRIO_PROCESS};
 use std::env;
+use std::io::{Error, Write};
 use std::process;
 use std::str::FromStr;
-use libc::{c_char, c_int, execvp, PRIO_PROCESS};
-use std::io::{Error, Write};
-
 
 fn main() {
     let args: Vec<String> = env::args().collect();
@@ -29,6 +28,4 @@ use std::io::{Error, Write};
     }
 
     println!("Nice value of process {} set to {}", pid, nice_value);
-
 }
-