drop libpromises1

OBS-URL: https://build.opensuse.org/package/show/systemsmanagement/cfengine?expand=0&rev=64

cfengine.spec

@@ -114,6 +114,8 @@ impact on system resources or performance.
 %package -n %{libsoname}
 Summary:        Shared library of cfengine
 Group:          System/Libraries
+Provides:       %{libname}1
+Obsoletes:      %{libname}1
 %if 0%{?suse_version} == 1010
 Requires:       glibc
 %endif