!45 fix post error "No such file or directory"

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

ebtables.spec

@@ -1,7 +1,7 @@
 
 Name:             ebtables
 Version:          2.0.11
-Release:          8
+Release:          9
 Summary:          A filtering tool for a Linux-based bridging firewall
 License:          GPLv2+
 URL:              http://ebtables.sourceforge.net/
@@ -68,6 +68,9 @@ for sfx in "" "-restore" "-save"; do
 	if [ "$(readlink -e $pfx$sfx)" == $pfx$sfx ]; then
 		rm -f $pfx$sfx
 	fi
+	if [ -e /var/lib/alternatives/ebtables$sfx ]; then
+		rm -f /var/lib/alternatives/ebtables$sfx
+	fi
 done
 if [ "$(readlink -e $manpfx.8.gz)" == $manpfx.8.gz ]; then
 	rm -f $manpfx.8.gz
@@ -110,6 +113,12 @@ fi
 %doc %{_mandir}/man8/ebtables-legacy.8*
 
 %changelog
+* Mon Aug 07 2023 gaihuiying <eaglegai@163.com> - 2.0.11-9
+- Type:bugfix
+- CVE:NA
+- SUG:NA
+- DESC:fix post error "No such file or directory"
+
 * Fri Jun 30 2023 xinghe <xinghe2@h-partners.com> - 2.0.11-8
 - Type:bugfix
 - CVE:NA