Clippy fixes in X11 code

Signed-off-by: Asahi Lina <[email protected]>

Author: hoshinolina

crates/muvm/src/bin/muvm.rs

@@ -301,7 +301,7 @@ fn main() -> Result<()> {
 
     // Forward the native X11 display into the guest as a socket
     if let Ok(x11_display) = env::var("DISPLAY") {
-        if let Some(x11_display) = x11_display.strip_prefix(":") {
+        if let Some(x11_display) = x11_display.strip_prefix(':') {
             let socket_path = Path::new("/tmp/.X11-unix/").join(format!("X{}", x11_display));
             if socket_path.exists() {
                 let socket_path = CString::new(

crates/muvm/src/guest/x11.rs

@@ -21,7 +21,7 @@ where
         Err(_) => return Ok(()),
     };
 
-    if !host_display.starts_with(":") {
+    if !host_display.starts_with(':') {
         return Err(anyhow!("Invalid host DISPLAY"));
     }
     let host_display = &host_display[1..];