build: correctly install the snap_scheduler tools

The current way of installing the snap-scheduler tools breaks the
building of RPMs. The tools should be installed in /usr/sbin and there
is no need to change the attributes/permissions after the installation.

Change-Id: I1b8e206748617fb000d956b1b5da52d126971c29
BUG: 1203557
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/9939
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

extras/snap_scheduler/Makefile.am

@@ -1,4 +1,4 @@
-snap_schedulerdir = $(DESTDIR)$(sbindir)/
+snap_schedulerdir = $(sbindir)/
 
 snap_scheduler_SCRIPTS = gcron.py snap_scheduler.py
 

glusterfs.spec.in

@@ -1042,6 +1042,11 @@ fi
 %{_libdir}/glusterfs/%{version}%{?prereltag}/xlator/mgmt*
 %{_libdir}/glusterfs/%{version}%{?prereltag}/xlator/nfs*
 %{_sharedstatedir}/glusterd
+
+#snap_scheduler
+%{_sbindir}/snap_scheduler.py
+%{_sbindir}/gcron.py
+
 #hookscripts
 %dir %attr(0755,-,-) %{_sharedstatedir}/glusterd/hooks
 %dir %attr(0755,-,-) %{_sharedstatedir}/glusterd/hooks/1
@@ -1054,9 +1059,6 @@ fi
 %dir %attr(0755,-,-) %{_sharedstatedir}/glusterd/hooks/1/start/post
 %dir %attr(0755,-,-) %{_sharedstatedir}/glusterd/hooks/1/stop
 %dir %attr(0755,-,-) %{_sharedstatedir}/glusterd/hooks/1/stop/pre
-#snap_scheduler
-install -p -m 0744 extras/snap_scheduler/snap_scheduler.py %{_sbindir}/
-install -p -m 0744 extras/snap_scheduler/gcron.py %{_sbindir}/
 
 %ghost %attr(0644,-,-) %config(noreplace) %{_sharedstatedir}/glusterd/glusterd.info
 %ghost %attr(0600,-,-) %{_sharedstatedir}/glusterd/options