fixed XML comments so XML::Parser doesn't fail on default config

etc/csc.conf

@@ -8,7 +8,7 @@
         payment_features="0"
         cc_dial_prefix="00"
         ac_dial_prefix="0"
-        <!-- only needed if PayPal is used -->
+>   <!-- only needed if PayPal is used
         paypal_soapuri="/2.0/"
         paypal_soapurl="https://api-3t.paypal.com/2.0/"
         paypal_username="your PayPal API user"
@@ -17,12 +17,15 @@
         paypal_redirecturl="https://www.paypal.com/cgi-bin/webscr?cmd=_express-checkout&amp;useraction=commit&amp;token="
         paypal_csc_returnurl="https://csc.yourdomain.tld/account/paidack"
         paypal_csc_cancelurl="https://csc.yourdomain.tld/account/paiderr"
-        <!-- only needed if mPAY24 integration is used -->
+     -->
+    <!-- only needed if mPAY24 integration is used
         mpay24_baseurl="https://www.mPAY24.com/bin/secure/at/etpv5"
         mpay24_merchantid="your mPAY24 ID"
-        <!-- only used by device autoconfiguration -->
+     -->
+    <!-- only used by device autoconfiguration
         cpe_autoconf_url="https://your.server.tld/autoconf/init"
->
+     -->
+
     <site_config title="CSC site title"
                  default_language="en"
     >