rename wrapper-version argument for x to differentiate it from the bo…

…otstrap version

src/tools/tidy/src/x_version.rs

@@ -3,7 +3,7 @@ use std::io::ErrorKind;
 use std::process::{Command, Stdio};
 
 pub fn check(bad: &mut bool) {
-    let result = Command::new("x").arg("--version").stdout(Stdio::piped()).spawn();
+    let result = Command::new("x").arg("--wrapper-version").stdout(Stdio::piped()).spawn();
     let child = match result {
         Ok(child) => child,
         Err(e) => match e.kind() {

src/tools/x/src/main.rs

@@ -53,7 +53,7 @@ fn exec_or_status(command: &mut Command) -> io::Result<ExitStatus> {
 
 fn main() {
     match env::args().skip(1).next().as_deref() {
-        Some("--version") => {
+        Some("--wrapper-version") => {
             let version = env!("CARGO_PKG_VERSION");
             println!("{}", version);
             return;