Refactor postprocessor variable name for clarity

Author: ithewei

http/server/HttpHandler.cpp

@@ -482,6 +482,11 @@ int HttpHandler::HandleHttpRequest() {
     }
 
 postprocessor:
+    // Handle HTTP_STATUS_CLOSE: close connection without response
+    if (status_code == HTTP_STATUS_CLOSE) {
+        state = WANT_CLOSE;
+        return HTTP_STATUS_CLOSE;
+    }
     if (status_code >= 100 && status_code < 600) {
         pResp->status_code = (http_status)status_code;
         if (pResp->status_code >= 400 && pResp->body.size() == 0 && pReq->method != HTTP_HEAD) {
@@ -504,8 +509,8 @@ int HttpHandler::HandleHttpRequest() {
         pResp->headers["Etag"] = fc->etag;
     }
     if (service->postprocessor) {
-        int pp_status_code = customHttpHandler(service->postprocessor);
-        if (pp_status_code == HTTP_STATUS_CLOSE) {
+        int post_status_code = customHttpHandler(service->postprocessor);
+        if (post_status_code == HTTP_STATUS_CLOSE) {
             state = WANT_CLOSE;
             return HTTP_STATUS_CLOSE;
         }