Fix Acme.sh script gets hung

when curl is run with '-X HEAD' and '--data ""' using http1.1
the server responds: "no chunk, no close, no size. Assume close
to signal end" and hungs.

This fixes the curl calls with when -X HEAD is used.

acme.sh

@@ -1704,10 +1704,18 @@ _post() {
     if [ "$needbase64" ]; then
       if [ "$body" ]; then
         if [ "$_postContentType" ]; then
+          if [ "$httpmethod" = 'HEAD' ]; then
+            response="$($_CURL -I --user-agent "$USER_AGENT" -X $httpmethod -H "Content-Type: $_postContentType" -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5"                "$_post_url" | _base64)"
+          else
             response="$($_CURL    --user-agent "$USER_AGENT" -X $httpmethod -H "Content-Type: $_postContentType" -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" --data "$body" "$_post_url" | _base64)"
+          fi
+        else
+          if [ "$httpmethod" = 'HEAD' ]; then
+            response="$($_CURL -I --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5"                "$_post_url" | _base64)"
           else
             response="$($_CURL    --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" --data "$body" "$_post_url" | _base64)"
           fi
+        fi
       else
         if [ "$_postContentType" ]; then
           response="$($_CURL --user-agent "$USER_AGENT" -X $httpmethod -H "Content-Type: $_postContentType" -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" "$_post_url" | _base64)"
@@ -1718,10 +1726,18 @@ _post() {
     else
       if [ "$body" ]; then
         if [ "$_postContentType" ]; then
+          if [ "$httpmethod" = 'HEAD' ]; then
+            response="$($_CURL -I --user-agent "$USER_AGENT" -X $httpmethod -H "Content-Type: $_postContentType" -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5"                "$_post_url")"
+          else
             response="$($_CURL    --user-agent "$USER_AGENT" -X $httpmethod -H "Content-Type: $_postContentType" -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" --data "$body" "$_post_url")"
+          fi
+        else
+          if [ "$httpmethod" = 'HEAD' ]; then
+            response="$($_CURL -I --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5"                "$_post_url")"
           else
             response="$($_CURL    --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" --data "$body" "$_post_url")"
           fi
+        fi
       else
         if [ "$_postContentType" ]; then
           response="$($_CURL --user-agent "$USER_AGENT" -X $httpmethod -H "Content-Type: $_postContentType" -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" "$_post_url")"