ksud: Remove warning for non-tty std

userspace/ksud/src/su.rs

@@ -5,7 +5,7 @@ use crate::{
 use anyhow::{Context, Ok, Result, bail};
 use getopts::Options;
 use libc::c_int;
-use log::{error, warn};
+use log::error;
 #[cfg(unix)]
 use std::os::unix::process::CommandExt;
 use std::{
@@ -75,7 +75,6 @@ fn set_identity(uid: u32, gid: u32, groups: &[u32]) {
 fn wrap_tty(fd: c_int) {
     let inner_fn = move || -> Result<()> {
         if unsafe { libc::isatty(fd) != 1 } {
-            warn!("not a tty: {fd}");
             return Ok(());
         }
         let new_fd = get_wrapped_fd(fd).context("get_wrapped_fd")?;