Detect sections; Unify printing help across the tools

src/Tools/jaby_engine_fconv/src/main.rs

@@ -64,6 +64,6 @@ fn main() {
                 exit_with_error(error);
             }
         },
-        Err(error) => eprintln!("{}", error)
+        Err(error) => println!("{}", error)
     }
 }