Feat: extract find_matches into own function.

src/main.rs

@@ -20,15 +20,21 @@ fn main() -> Result<()> {
         .with_context(|| format!("could not read file `{}`.", args.path.display()))?;
 
 
-    for line in content.lines() {
-        if line.contains(&args.pattern) {
-            println!("{}", line)
-        }
-    }
+    find_matches(content.as_str(), args.pattern.as_str());
 
     Ok(())
 }
 
+fn find_matches(content: &str, pattern: &str) {
+    for line in content.lines() {
+        if line.contains(pattern) {
+            println!("{}", line)
+        }
+    }
+}
+
+
+
 #[allow(dead_code)]
 fn answer() -> i32 {
     return 42;