chore: formatting and cleanup

src/day3.rs

@@ -1,6 +1,8 @@
 use std::fs;
 fn check_mul(instruction: &str) -> bool {
-    if instruction.find(',').is_none() { return false; }
+    if instruction.find(',').is_none() {
+        return false;
+    }
     let (first_part, second_part) = instruction.split_once(',').expect("Expected mul to split");
     let first_num = &first_part[4..];
     let second_num = &second_part[..second_part.len() - 1];
@@ -32,7 +34,11 @@ pub fn part1(input_file_path: &str) {
         let end_index = tmp.find(')').expect("expected a closure");
         let trim_str = tmp.split_at(end_index + 1).0;
         println!("{}", trim_str);
-        total += if check_mul(trim_str) {eval_mul(trim_str)} else {0};
+        total += if check_mul(trim_str) {
+            eval_mul(trim_str)
+        } else {
+            0
+        };
     });
     println!("Eval result: {}", total);
 }