!10 fix build with rpm 4.18.0

From: @eaglegai 
Reviewed-by: @seuzw 
Signed-off-by: @seuzw

netcf.spec

@@ -1,6 +1,6 @@
 Name:           netcf
 Version:        0.2.8
-Release:        20
+Release:        21
 Summary:        Cross-platform network configuration library
 License:        LGPLv2+
 URL:            https://pagure.io/netcf
@@ -50,6 +50,7 @@ make install DESTDIR=$RPM_BUILD_ROOT SYSTEMD_UNIT_DIR=%{_unitdir} INSTALL="%{__i
 
 %check
 make check
+make distclean
 
 %preun
 %systemd_preun netcf-transaction.service
@@ -84,6 +85,12 @@ make check
 %{_mandir}/man1/ncftool.1*
 
 %changelog
+* Wed Feb 08 2023 gaihuiying <eaglegai@163.com> - 0.2.8-21
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:fix build with rpm 4.18.0
+
 * Thu Dec 30 2021 gaihuiying <gaihuiying1@huawei.com> - 0.2.8-20
 - Type:bugfix
 - ID:NA