Fixing region tags in Java file

One of the region tags was misnamed (had the _kotlin suffix
instead of _java).

Author: asolovay

misc/src/main/java/com/example/snippets/backgroundwork/WakeLockSnippetsJava.java

@@ -17,7 +17,7 @@ protected void onCreate(@Nullable Bundle savedInstanceState) {
         PowerManager powerManager = (PowerManager) getSystemService(POWER_SERVICE);
         PowerManager.WakeLock wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "MyClassName::MyWakelockTag");
         wakeLock.acquire();
-        // [END android_backgroundwork_wakelock_create_kotlin]
+        // [END android_backgroundwork_wakelock_create_java]
 
         super.onCreate(savedInstanceState);
     }