Silence possible %post scriptlet errors (#983772)

lockdev.spec

@@ -10,7 +10,7 @@
 Summary: A library for locking devices
 Name: lockdev
 Version: 1.0.4
-Release: 0.9.%{checkout}%{?dist}
+Release: 0.10.%{checkout}%{?dist}
 License: LGPLv2
 Group: System Environment/Libraries
 URL: https://alioth.debian.org/projects/lockdev/
@@ -78,15 +78,14 @@ rm -f %{buildroot}%{_libdir}/*.la
 mkdir -p %{buildroot}%{_lockdir}
 
 %pre
-getent group lock >/dev/null || groupadd -g 54 -r -f lock
-exit 0
+getent group lock >/dev/null 2>&1 || groupadd -g 54 -r -f lock >/dev/null 2>&1 || :
 
 %post
 /sbin/ldconfig
 if [ $1 -eq 1 ] ; then
 # for the time until first reboot
-  mkdir --mode=0775 -p %{_lockdir}
-  chown root:lock %{_lockdir}
+  mkdir --mode=0775 -p %{_lockdir} >/dev/null 2>&1 || :
+  chown root:lock %{_lockdir} >/dev/null 2>&1 || :
 fi
 
 %postun -p /sbin/ldconfig
@@ -106,6 +105,9 @@ fi
 %{_includedir}/*
 
 %changelog
+* Mon Aug 26 2013 Jiri Popelka <jpopelka@redhat.com> - 1.0.4-0.10.20111007git
+- Silence possible %%post scriptlet errors (#983772)
+
 * Sat Aug 03 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.0.4-0.9.20111007git
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild