Resolve unnecessary_map_or clippy lint

    warning: this `map_or` is redundant
      --> src/count.rs:53:13
       |
    53 |         if !bytes.next().map_or(false, is_ascii_hexdigit) {
       |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use is_some_and instead: `bytes.next().is_some_and(is_ascii_hexdigit)`
       |
       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_map_or
       = note: `-W clippy::unnecessary-map-or` implied by `-W clippy::all`
       = help: to override `-W clippy::all` add `#[allow(clippy::unnecessary_map_or)]`

src/count.rs

@@ -50,7 +50,7 @@ fn parse_function_name(line: &str) -> Option<String> {
 fn has_hash(name: &str) -> bool {
     let mut bytes = name.bytes().rev();
     for _ in 0..16 {
-        if !bytes.next().map_or(false, is_ascii_hexdigit) {
+        if !bytes.next().is_some_and(is_ascii_hexdigit) {
             return false;
         }
     }