rules[refactor] Updated check/fix for nfsd

rules/os/os_nfsd_disable.yaml

@@ -3,13 +3,19 @@ title: Disable Network File System Service
 discussion: |
   Support for Network File Systems (NFS) services is non-essential and, therefore, _MUST_ be disabled.
 check: |
-  /bin/launchctl print-disabled system | /usr/bin/grep -c '"com.apple.nfsd" => disabled'
+  isDisabled=$(/sbin/nfsd status | /usr/bin/awk '/nfsd service/ {print $NF}')    
+  if [[ "$isDisabled" == "disabled" ]] && [[ -z $(/usr/bin/pgrep nfsd) ]]; then
+    echo "pass"
+  else
+    echo "fail"
+  fi
 result:
-  integer: 1
+  string: "pass"
 fix: |
   [source,bash]
   ----
   /bin/launchctl disable system/com.apple.nfsd
+  /bin/rm -rf /etc/exports
   ----
   The system may need to be restarted for the update to take effect.
 references: