!21 [sync] PR-20: fix %postun error

From: @openeuler-sync-bot 
Reviewed-by: @wu-leilei 
Signed-off-by: @wu-leilei

nagios.spec

@@ -1,6 +1,6 @@
 Name:           nagios
 Version:        4.4.13
-Release:        1
+Release:        2
 Summary:        Host/service/network monitoring program
 License:        GPLv2
 URL:            https://www.nagios.org/projects/nagios-core/
@@ -208,7 +208,7 @@ fi
 %postun
 /usr/bin/systemctl condrestart httpd  > /dev/null 2>&1 || :
 
-triggerun -- %{name} < 3.5.1-2
+%triggerun -- %{name} < 3.5.1-2
 # Save the current service runlevel info
 # User must manually run systemd-sysv-convert --apply opensips
 # to migrate them to systemd targets
@@ -288,6 +288,9 @@ fi
 %{_libdir}/%{name}/cgi/
 
 %changelog
+* Mon Aug 28 2023 chenchen <chen_aka_jan@163.com> - 4.4.13-2
+- fix %postun error
+
 * Thu Jul 27 2023 chenchen <chen_aka_jan@163.com> - 4.4.13-1
 - Upgrade to version 4.4.13