fix issue for nc on windows.

acme.sh

@@ -658,8 +658,8 @@ _startserver() {
   _debug "_NC" "$_NC"
 #  while true ; do
     if [ "$DEBUG" ] ; then
-      if ! echo -e -n "HTTP/1.1 200 OK\r\n\r\n$content" | $_NC -p $Le_HTTPPort -vv ; then
-        echo -e -n "HTTP/1.1 200 OK\r\n\r\n$content" | $_NC $Le_HTTPPort -vv ;
+      if ! echo -e -n "HTTP/1.1 200 OK\r\n\r\n$content" | $_NC -p $Le_HTTPPort ; then
+        echo -e -n "HTTP/1.1 200 OK\r\n\r\n$content" | $_NC $Le_HTTPPort ;
       fi
     else
       if ! echo -e -n "HTTP/1.1 200 OK\r\n\r\n$content" | $_NC -p $Le_HTTPPort > /dev/null 2>&1; then