Fixed sensitive record

If perform [:lower:] - user can't peroperly add some records, for example
DKIM key (which is base64 encoded crypto key)

Author: Ursadon

bin/v-add-dns-record

@@ -21,7 +21,6 @@ record=$(idn -t --quiet -u "$3" )
 record=$(echo "$record" | tr '[:upper:]' '[:lower:]')
 rtype=$(echo "$4"| tr '[:lower:]' '[:upper:]')
 dvalue=$(idn -t --quiet -u "$5" )
-dvalue=$(echo "$dvalue" | tr '[:upper:]' '[:lower:]')
 priority=$6
 id=$7
 restart=$8