dont inherit stdio in command function

src/std_fns.rs

@@ -812,13 +812,19 @@ pub fn command(stack: &mut Stack) -> OError {
     if args.is_empty() {
         return stack.err(ErrorKind::InvalidCall("command".to_owned()));
     }
+    stack.push(
+        Value::Long(
             process::Command::new(&args[0])
                 .args(&args[1..])
-        .stdin(Stdio::inherit())
+                .stdin(Stdio::null())
-        .stdout(Stdio::inherit())
+                .stdout(Stdio::null())
-        .stderr(Stdio::inherit())
+                .stderr(Stdio::null())
                 .spawn()
-        .map_err(|x| stack.error(ErrorKind::IO(x.to_string())))?;
+                .map_err(|x| stack.error(ErrorKind::IO(x.to_string())))?
+                .id() as i64,
+        )
+        .spl(),
+    );
     Ok(())
 }
 
@@ -1195,7 +1201,7 @@ pub fn register(r: &mut Stack, o: Arc<Frame>) {
         ("alit-end", alit_end, 1),
         ("import", import, 0),
         ("readln", readln, 1),
-        ("command", command, 0),
+        ("command", command, 1),
         ("command-wait", command_wait, 1),
         ("str-to-bytes", str_to_bytes, 1),
         ("bytes-to-str", bytes_to_str, 1),