Fix. Set chunk end callback.

Author: moteus

src/lceasy.c

@@ -1324,7 +1324,7 @@ static int lcurl_easy_set_CHUNK_BGN_FUNCTION(lua_State *L){
 
 static int lcurl_easy_set_CHUNK_END_FUNCTION(lua_State *L){
   lcurl_easy_t *p = lcurl_geteasy(L);
-  return lcurl_easy_set_callback(L, p, &p->chunk_bgn,
+  return lcurl_easy_set_callback(L, p, &p->chunk_end,
     CURLOPT_CHUNK_END_FUNCTION, CURLOPT_CHUNK_DATA,
     "chunk_bgn", lcurl_chunk_bgn_callback
   );