Revert "lucene.jobs.sh to exit whenever an error exit"

We use a while loop to restart the inc updater. -e is unwanted.

This reverts commit 7be5c7c13f800a07a6ce3a4502121a9977d904e3

Change-Id: I3cc9dfeb09603b0fffae808cc4e40d9e55d6fd6b