get_args: process /data/cache/command

Change-Id: I744cdc5a72f53fd1224de242e30ff261e6104900
diff --git a/etc/init.rc b/etc/init.rc
index 362687f..9c7d348 100644
--- a/etc/init.rc
+++ b/etc/init.rc
@@ -41,7 +41,7 @@
 
     mkdir /system
     mkdir /data
-    mkdir /cache
+    symlink /data/cache /cache
     mkdir /sideload
     mkdir /mnt/system
     mount tmpfs tmpfs /tmp