test(cli): the terminal tests speak BSD script on macOS; a noted root is compared as the system spells it

The portable macOS job, now past the server start: `script -qefc` is
util-linux's spelling; macOS's BSD `script` has no -f and no -c, so the
three pseudo-terminal helpers choose the spelling for the OS. And the
root noted "for next time" is the canonical path (macOS writes /tmp as
/private/tmp); the test compares it canonically.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HS8WZziDnyxunC23MUxrLp

crates/ledger-cli/tests/open_while_held.rs

@@ -1944,7 +1944,7 @@ fn the_books_command_takes_its_flags_and_asks_before_adopting() {
             args.push(a.to_string());
         }
         let mut child = Command::new("script")
-            .args(["-qefc", &args.join(" "), "/dev/null"])
+            .args(script_args(&args.join(" ")))
             .env_clear()
             .env("PATH", "/usr/bin:/bin")
             .env("HOME", home.dir.path())
@@ -2948,3 +2948,17 @@ fn token_check_says_where_the_token_file_stands_and_an_unreadable_one_is_said()
     let (_, listed, _) = token(&["list"]);
     assert!(listed.contains("No tokens yet"), "{listed}");
 }
+
+/// `script`'s arguments to run `command` on a pseudo-terminal, quietly,
+/// with the command's exit code as its own: util-linux's spelling on
+/// Linux, BSD's on macOS (no `-f`, no `-c`; the command after the file).
+fn script_args(command: &str) -> Vec<String> {
+    if cfg!(target_os = "macos") {
+        ["-qeF", "/dev/null", "/bin/sh", "-c", command]
+    } else {
+        ["-qefc", command, "/dev/null"]
+    }
+    .into_iter()
+    .map(String::from)
+    .collect()
+}