Auto merge of #12240 - perlun:fix/use-if-let, r=ConnorGBrewster

Use if let rather than match

- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #12236

- [ ] There are tests for these changes OR
- [X] These changes do not require tests because @jdm said so. 😉 Trivial change so as long as it compiles, "ship it".

Fixes #12236.

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components/servo/lib.rs

@@ -237,12 +237,8 @@ fn create_constellation(opts: opts::Opts,
                         layout_thread::LayoutThread,
                         script::script_thread::ScriptThread>::start(initial_state);
 
-    // Send the URL command to the constellation.
+    if let Some(url) = opts.url {
-    match opts.url {
+        constellation_chan.send(ConstellationMsg::InitLoadUrl(url)).unwrap();
-        Some(url) => {
-            constellation_chan.send(ConstellationMsg::InitLoadUrl(url)).unwrap();
-        },
-        None => ()
     };
 
     constellation_chan