Feat: question mark unwrap.

src/main.rs

@@ -12,15 +12,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>>{
 
     // let content = std::fs::read_to_string(&args.path).expect("Could not read file.");
 
-    let result = std::fs::read_to_string(&args.path);
-    let content = match result {
-        Ok(content) => {
-            content
-        },
-        Err(error) => {
-            return Err(error.into());
-        }
-    };
+    let content = std::fs::read_to_string(&args.path)?;
 
     for line in content.lines() {
         if line.contains(&args.pattern) {