cutoff default in configuration

src/main.rs

@@ -55,7 +55,7 @@ struct Args {
    #[arg(long)]
    after_line: Option<String>,
 
-   #[arg(long)]
+   #[arg(long,default_value="3")]
    cutoff: Option<i32>,
 
    #[arg(long,require_equals=true,num_args=0..=1,default_missing_value_os="true")]
@@ -130,10 +130,7 @@ fn main() {
         None => panic!("must specify a raw input file"),
         Some(lf) => lf,
     };
-    let cutoff = match args.cutoff {
-        None => 3,
-        Some(c) => c,
-    };
+    let cutoff = args.cutoff.unwrap();
 
     let (double_dict, triple_dict, _all_token_list) =
         packages::parser::parse_raw(input_fn.unwrap(), &log_format);