Use bool::then

requested here: #17479 (comment)

Co-authored-by: Bruce Guenter <[email protected]>

Author: DominicBurkart

src/app.rs

@@ -62,13 +62,8 @@ impl ApplicationConfig {
     ) -> Result<Self, ExitCode> {
         let config_paths = opts.config_paths_with_formats();
 
-        let graceful_shutdown_duration = if opts.no_graceful_shutdown_limit {
-            None
-        } else {
-            Some(Duration::from_secs(u64::from(
-                opts.graceful_shutdown_limit_secs,
-            )))
-        };
+        let graceful_shutdown_duration = (!opts.no_graceful_shutdown_limit)
+            .then(|| Duration::from_secs(u64::from(opts.graceful_shutdown_limit_secs)));
 
         let config = load_configs(
             &config_paths,