Enable minimal startup dex by default

Change-Id: I6edc85de09c462fc674bd6c09d9061e947fccd9f
diff --git a/src/main/java/com/android/tools/r8/experimental/startup/StartupOptions.java b/src/main/java/com/android/tools/r8/experimental/startup/StartupOptions.java
index c7f4a5c..1d37b90 100644
--- a/src/main/java/com/android/tools/r8/experimental/startup/StartupOptions.java
+++ b/src/main/java/com/android/tools/r8/experimental/startup/StartupOptions.java
@@ -18,7 +18,7 @@
    */
   private boolean enableMinimalStartupDex =
       parseSystemPropertyForDevelopmentOrDefault(
-          "com.android.tools.r8.startup.minimalstartupdex", false);
+          "com.android.tools.r8.startup.minimalstartupdex", true);
 
   /**
    * When enabled, optimizations crossing the startup/non-startup boundary will be allowed.