Fix spec file.

OBS-URL: https://build.opensuse.org/package/show/network:ha-clustering:Factory/corosync?expand=0&rev=40

corosync.spec

@@ -54,6 +54,7 @@ BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 # openais is indeed gone and should be uninstalled. No, we do not
 # provide openais on purpose, the package has been deleted.
 Obsoletes:      openais
+Conflicts:      openais
 # Runtime bits
 Requires:       libcorosync4 = %{version}-%{release}
 #Requires(pre): /usr/sbin/useradd