RECV is for download

docs/libcurl/curl_easy_setopt.3

@@ -1117,10 +1117,10 @@ average during the transfer, the transfer will pause to keep the average rate
 less than or equal to the parameter value.  Defaults to unlimited
 speed. (Added in 7.15.5)
 .IP CURLOPT_MAX_RECV_SPEED_LARGE
-Pass a curl_off_t as parameter.  If an upload exceeds this speed on cumulative
-average during the transfer, the transfer will pause to keep the average rate
-less than or equal to the parameter value. Defaults to unlimited speed. (Added
-in 7.15.5)
+Pass a curl_off_t as parameter.  If a download exceeds this speed on
+cumulative average during the transfer, the transfer will pause to keep the
+average rate less than or equal to the parameter value. Defaults to unlimited
+speed. (Added in 7.15.5)
 .IP CURLOPT_MAXCONNECTS
 Pass a long. The set number will be the persistent connection cache size. The
 set amount will be the maximum amount of simultaneously open connections that