code lengths

src/freedombone-config

         dialog --title $"Invalid FreeDNS Code" --msgbox "$FREEDNS_MESSAGE" 10 70
         VALID_CODE=
     fi
-    if [ ${#freedns_code} -lt 30 ]; then
+    if [ ${#freedns_code} -lt 25 ]; then
         dialog --title $"Invalid FreeDNS Code" --msgbox $'FreeDNS code is too short. Did you enter the entire code?' 6 70
         VALID_CODE=
     fi

src/freedombone-utils-validation

         dialog --title $"Invalid FreeDNS Code" --msgbox "$FREEDNS_MESSAGE" 10 70
         VALID_CODE=
     fi
-    if [ ${#freedns_code} -lt 30 ]; then
+    if [ ${#freedns_code} -lt 25 ]; then
         dialog --title $"Invalid FreeDNS Code" --msgbox $'FreeDNS code is too short. Did you enter the entire code?' 6 70
         VALID_CODE=
     fi