moved the env change check to its own function

dnsapi/dns_cyon.sh

@@ -215,10 +215,8 @@ _cyon_change_domain_env() {
 
   if ! _cyon_check_if_2fa_missed "${domain_env_response}"; then return 1; fi
 
-  domain_env_success="$(printf "%s" "${domain_env_response}" | _egrep_o '"authenticated":\w*' | cut -d : -f 2)"
-
   # Bail if domain environment change fails.
-  if [ "${domain_env_success}" != "true" ]; then
+  if [ "$(printf "%s" "${domain_env_response}" | _cyon_get_envchange_success)" != "true" ]; then
     _err "    $(printf "%s" "${domain_env_response}" | _cyon_get_response_message)"
     _err ""
     return 1
@@ -317,6 +315,10 @@ _cyon_get_response_success() {
   _egrep_o '"onSuccess":"[^"]*"' | cut -d : -f 2 | tr -d '"'
 }
 
+_cyon_get_envchange_success() {
+  _egrep_o '"authenticated":\w*' | cut -d : -f 2
+}
+
 _cyon_check_if_2fa_missed() {
   # Did we miss the 2FA?
   if test "${1#*multi_factor_form}" != "${1}"; then