Fix generated classpath ordering

There is a bug with this script only when plugins are added to the plugins
folder. I found it when attempting to debug the its-bugzilla plugin.
It places the plugin dependent libraries ahead of the Gerrit core libraries
which can cause conflicts and failures with Gerrit core.  This change
switches the ordering.

Change-Id: Id39a9035928c1dcc3daf034f5fdd7d88d87bb024
1 file changed