Bug 13753: koha-indexer contains invalid statement

Bug 13753: koha-indexer contains invalid statement

An incorrect conditional makes the indexer daemon fail to load.

To test:
- Enable the indexer daemon on packages [1]
- Restart koha-common:
  $ service koha-common restart
- Run
  $ ps waux | grep koha-indexer
=> FAIL: there's no reference to the rebuild_zebra.pl script
  (line should look like *rebuild_zebra.pl -daemon*)
   Run ps -ef | grep rebuild_zebra.pl too to make sure.
- Apply the patch, repeat the steps
=> SUCCESS: the rebuild_zebra.pl script is ran
- Sign off :-D

Thanks

Sponsored-by: Universidad Nacional de Cordoba
Signed-off-by: Mirko Tietgen <mirko@abunchofthings.net>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
(cherry picked from commit b1ef4123bf80522fbab97e4ac7e4648a4122d6e9)
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>