From 8b9971c54ea58013020189d43123177c63e88190 Mon Sep 17 00:00:00 2001
From: Terts Diepraam <terts.diepraam@gmail.com>
Date: Thu, 29 Sep 2022 23:02:09 +0200
Subject: [PATCH] nice: update to clap 4

---
 src/uu/nice/Cargo.toml  | 2 +-
 src/uu/nice/src/nice.rs | 7 +++----
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/uu/nice/Cargo.toml b/src/uu/nice/Cargo.toml
index d294466a0..c062d4db3 100644
--- a/src/uu/nice/Cargo.toml
+++ b/src/uu/nice/Cargo.toml
@@ -15,7 +15,7 @@ edition = "2021"
 path = "src/nice.rs"
 
 [dependencies]
-clap = { version = "3.2", features = ["wrap_help", "cargo"] }
+clap = { version = "4.0", features = ["wrap_help", "cargo"] }
 libc = "0.2.135"
 nix = { version = "0.25", default-features = false }
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore" }
diff --git a/src/uu/nice/src/nice.rs b/src/uu/nice/src/nice.rs
index 439b30f37..f4fa5a195 100644
--- a/src/uu/nice/src/nice.rs
+++ b/src/uu/nice/src/nice.rs
@@ -15,7 +15,7 @@ use std::ffi::CString;
 use std::io::Error;
 use std::ptr;
 
-use clap::{crate_version, Arg, Command};
+use clap::{crate_version, Arg, ArgAction, Command};
 use uucore::{
     error::{set_exit_code, UClapError, UResult, USimpleError, UUsageError},
     format_usage,
@@ -100,7 +100,7 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     Ok(())
 }
 
-pub fn uu_app<'a>() -> Command<'a> {
+pub fn uu_app() -> Command {
     Command::new(uucore::util_name())
         .about(ABOUT)
         .override_usage(format_usage(USAGE))
@@ -112,12 +112,11 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .short('n')
                 .long(options::ADJUSTMENT)
                 .help("add N to the niceness (default is 10)")
-                .takes_value(true)
                 .allow_hyphen_values(true),
         )
         .arg(
             Arg::new(options::COMMAND)
-                .multiple_occurrences(true)
+                .action(ArgAction::Append)
                 .value_hint(clap::ValueHint::CommandName),
         )
 }