markov: shut up clippy

src/markov.rs

@@ -103,7 +103,7 @@ impl MarkovGenerator {
         let path = Path::new(corpus_dir);
         if path.exists() && path.is_dir() {
             if let Ok(entries) = fs::read_dir(path) {
-                for entry in entries {
+                entries.for_each(|entry| {
                     if let Ok(entry) = entry {
                         let file_path = entry.path();
                         if let Some(file_name) = file_path.file_stem() {
@@ -120,7 +120,7 @@ impl MarkovGenerator {
                             }
                         }
                     }
-                }
+                });
             }
         }