Fix a bug for 8.1.16

bin/hardening/8.1.16_record_sudo_usage.sh

@@ -41,6 +41,9 @@ audit () {
 
 # This function will be called if the script status is on enabled mode
 apply () {
+    # define custom IFS and save default one
+    d_IFS=$IFS
+    IFS=$'\n'
 	if [ $FNRET = 1 ]; then
 		warn "file $SUDOLOG is not exist! Set default logfile path in /etc/sudoers."
 		sed -i '$aDefaults	logfile="/var/log/sudo.log"' /etc/sudoers
@@ -57,6 +60,7 @@ apply () {
 	else
 		ok "$AUDIT_VALUE is present in $FILE"
 	fi
+	IFS=$d_IFS
 }
 
 # This function will check config parameters required