Fix confusing .expect msg

Signed-off-by: Jiahao XU <[email protected]>

crates/bin/src/gh_token.rs

@@ -62,6 +62,7 @@ impl CommandExt for Command {
             child
                 .stdin
                 .take()
+                .unwrap()
                 .expect("Failed to open stdin")
                 .write_all(input)
                 .await?;