[ref] Cleanup

src/args.rs

@@ -1,8 +1,10 @@
 use clap::Parser;
 
-#[derive(Debug,Parser)]
-#[command(version, about, long_about = "Byte Pusher Emulator")]
-pub struct BytePusherArgs{
-    #[arg(short,long)]
-    pub file_name:Option<String>
+#[derive(Debug, Parser)]
+#[command(version, about, author)]
+pub struct BytePusherArgs {
+    #[arg(short, long, help = "ROM file to load")]
+    pub file_name: Option<String>,
+    #[arg(short, long, help = "Scale at which to draw", default_value_t = 2.0)]
+    pub draw_scale: f32,
 }