Synchronize spec file with recent rc file changes

postfix/postfix.spec

@@ -275,6 +275,8 @@ Conflicts:    sendmail, ssmtp, exim
         -e 's;@l_susr@;%{l_susr};g' \
         -e 's;@l_musr@;%{l_musr};g' \
         -e 's;@l_mgrp@;%{l_mgrp};g' \
+        -e 's;@l_rusr@;%{l_rusr};g' \
+        -e 's;@l_rgrp@;%{l_rgrp};g' \
         %{SOURCE rc.postfix} $RPM_BUILD_ROOT%{l_prefix}/etc/rc.d/
 
     #   adjust installation to avoid file name conflicts