[AsseticBundle] fix fatal error - missing argument assetic.asset_manager in definition assetic.asset_manager_cache_warmer serivce

Author: marphi

src/Symfony/Bundle/AsseticBundle/Resources/config/assetic.xml

@@ -91,6 +91,7 @@
  </service>
  <service id="assetic.asset_manager_cache_warmer" class="%assetic.asset_manager_cache_warmer.class%" public="false">
  <tag name="kernel.cache_warmer" priority="10" />
+ <argument type="service" id="assetic.asset_manager" />
  </service>
  </services>
 </container>