Revert "Enhanced command line"

src/main.rs

@@ -36,6 +36,11 @@ fn main() {
     let handler = signal::SigHandler::Handler(handle_sigint);
     unsafe { signal::signal(signal::Signal::SIGINT, handler) }.unwrap();
 
+    if env::args().skip(1).any(|a| a == "-v" || a == "--version") {
+        println!("{:}", git_version!(cargo_prefix = "cargo:", fallback = "unknown"));
+        return;
+    }
+
     let mut wam = Machine::new(readline::input_stream(), Stream::stdout());
     wam.run_top_level();
 }