Stop logrotate from complaining about missing files.

Previously logrotate reported errors for files missing in
"/var/log/glusterfs/geo-replication-slaves/*/*.log". Fixed by reordering
directives in the example config.

Change-Id: I7cdb9e0d82f08aa27d5e26664660204fdeb8e98e
BUG: 1170825
Signed-off-by: Jan-Hendrik Zab <zab@l3s.de>
Reviewed-on: http://review.gluster.org/9264
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Lalatendu Mohanty <lmohanty@redhat.com>