comments cleanup

src/main.rs

@@ -103,13 +103,12 @@ fn main() -> std::io::Result<()> {
 
     let mut err: String = "".to_string();
 
-    //Shell symbol
     let args: Vec<String> = args().collect();
     let shell: String;
     if args.len() > 1 {
-        shell = args[1].clone();
+        shell = args[1].clone();    // Shell symbol
         if args.len() > 2 {
-            err = args[2].clone();
+            err = args[2].clone();  // Error status
         }
     }
     else {