refactoring: reformat and import sort

src/builtins/logout.rs

@@ -1,16 +1,16 @@
 use crate::builtins::{Builtin, BuiltinConfig};
 use crate::error::ShellError;
-use system_shutdown::logout;
 use std::io;
+use system_shutdown::logout;
 
 pub struct Logout;
 
 impl Builtin for Logout {
     fn execute(&mut self, _: &mut BuiltinConfig, _: Vec<String>) -> Result<(), ShellError> {
-        let mut input = String::new();
+        let mut input_confirmation = String::new();
         println!("Are you sure? Unsaved data will be lost.\ny/n");
-        io::stdin().read_line(&mut input).expect("Couldn't read form stdin");
-        if input.chars().next().unwrap()=='y' {
+        io::stdin().read_line(&mut input_confirmation).expect("Couldn't read form stdin");
+        if input_confirmation.chars().next().unwrap() == 'y' {
             match logout() {
                 Ok(_) => println!("Logging out"),
                 Err(error) => eprintln!("Failed to log out: {}", error),