added conf_ntp, few typos

modules/conf_ntp.sh

@@ -0,0 +1,28 @@
+# NTP
+
+conf_ntp()
+{
+    prnt I "Installation du fichier de configuration de NTP."
+    dest="/etc/ntp.conf.work"
+    backupdist /etc/ntp.conf
+    installfile ntp.conf $dest
+    local line=""
+    for srv in $NTPSERVERS; do
+	line="${line}server $srv iburst\n"
+    done
+    sed -i -e "s/@SERVERLIST@/$line/" $dest &&
+	echo "# Generated on $(date --rfc-3339=seconds)" >> $dest &&
+	mv -fv $dest /etc/ntp.conf
+}
+
+# NTP
+precheck_conf_ntp()
+{
+    if [[ ! $NTPSERVERS ]]; then
+	prnt E "Pas de serveur NTP configuré !"
+	exit 1
+    fi
+}
+
+export -f conf_ntp
+export -f precheck_conf_ntp