Fix clippy::cloned_instead_of_copied.

src/uu/hashsum/src/hashsum.rs

@@ -96,7 +96,7 @@ fn create_algorithm_from_flags(matches: &ArgMatches) -> UResult<HashAlgorithm> {
         set_or_err(detect_algo("b3sum", None)?)?;
     }
     if matches.get_flag("sha3") {
-        let bits = matches.get_one::<usize>("bits").cloned();
+        let bits = matches.get_one::<usize>("bits").copied();
         set_or_err(create_sha3(bits)?)?;
     }
     if matches.get_flag("sha3-224") {

src/uu/ptx/src/ptx.rs

@@ -129,7 +129,7 @@ impl WordFilter {
                 HashSet::new() // really only chars found in file
             } else {
                 // GNU off means at least these are considered
-                [' ', '\t', '\n'].iter().cloned().collect()
+                [' ', '\t', '\n'].iter().copied().collect()
             };
             hs.extend(chars);
             Some(hs)

src/uu/tr/src/operation.rs

@@ -112,7 +112,7 @@ impl Sequence {
             Self::Class(class) => match class {
                 Class::Alnum => Box::new((b'0'..=b'9').chain(b'A'..=b'Z').chain(b'a'..=b'z')),
                 Class::Alpha => Box::new((b'A'..=b'Z').chain(b'a'..=b'z')),
-                Class::Blank => Box::new(unicode_table::BLANK.iter().cloned()),
+                Class::Blank => Box::new(unicode_table::BLANK.iter().copied()),
                 Class::Control => Box::new((0..=31).chain(std::iter::once(127))),
                 Class::Digit => Box::new(b'0'..=b'9'),
                 Class::Graph => Box::new(
@@ -137,7 +137,7 @@ impl Sequence {
                         .chain(123..=126),
                 ),
                 Class::Punct => Box::new((33..=47).chain(58..=64).chain(91..=96).chain(123..=126)),
-                Class::Space => Box::new(unicode_table::SPACES.iter().cloned()),
+                Class::Space => Box::new(unicode_table::SPACES.iter().copied()),
                 Class::Xdigit => Box::new((b'0'..=b'9').chain(b'A'..=b'F').chain(b'a'..=b'f')),
                 Class::Lower => Box::new(b'a'..=b'z'),
                 Class::Upper => Box::new(b'A'..=b'Z'),

src/uucore/src/lib/features/fs.rs

@@ -231,7 +231,7 @@ pub enum ResolveMode {
 /// replace this once that lands
 pub fn normalize_path(path: &Path) -> PathBuf {
     let mut components = path.components().peekable();
-    let mut ret = if let Some(c @ Component::Prefix(..)) = components.peek().cloned() {
+    let mut ret = if let Some(c @ Component::Prefix(..)) = components.peek().copied() {
         components.next();
         PathBuf::from(c.as_os_str())
     } else {