the nessusd.conf file can contain passwords, so protect is a little bit better

nessus-tool/nessus-tool.spec

@@ -147,7 +147,8 @@ AutoReqProv:  no
     #   determine installation files
     %{l_rpmtool} files -v -ofiles -r$RPM_BUILD_ROOT \
         %{l_files_std} \
-        '%config %{l_prefix}/etc/nessus/*'
+        '%config %{l_prefix}/etc/nessus/*' \
+        '%config %attr(0600,%{l_musr},%{l_mgrp}) %{l_prefix}/etc/nessus/nessusd.conf'
 
 %files -f files