Fix remaining warnings

-Rename child to _child for non Unix systems
-Run cargo fmt on the source code

src/lib.rs

@@ -620,30 +620,32 @@ unsafe extern "C" fn start_game_clicked(
 
         let mut process = Command::new(state.game_path.clone());
 
-        let child = process.spawn();
-        
+        let _child = process.spawn();
+
         #[cfg(unix)]
         {
             // For Unix systems only, spawn a new thread that waits for the process to exit.
             // This avoids keeping the process in a zombie state and never letting go of it until
             // the plugin is unloaded
-            
-            let mut child = match child {
-                Ok(child) => { child }
+
+            let mut child = match _child {
+                Ok(child) => child,
                 Err(e) => {
                     warn!("Failure starting the game process {e}");
                     return false;
                 }
             };
-
-            std::thread::spawn(move || {                
-                match child.wait() {
-                    Ok(exit_status) => { info!("Game process exited with {}", exit_status); }
-                    Err(e) => { warn!("Failure waiting for the game process' exit: {e}"); }
+
+            std::thread::spawn(move || match child.wait() {
+                Ok(exit_status) => {
+                    info!("Game process exited with {}", exit_status);
+                }
+                Err(e) => {
+                    warn!("Failure waiting for the game process' exit: {e}");
                 }
             });
         }
-        
+
         return false;
     }