Fix. easy:reset() returns correct value

examples/cURLv3/uvwget.lua

@@ -230,7 +230,8 @@ local curl_check_multi_info = function()
 
     if ok then on_end(easy, nil, done_url) else on_end(easy, err, done_url) end
 
-    easy:reset().data = nil
+    easy:reset()
+    easy.data = nil
     qfree:push(easy)
   end
 

src/lceasy.c

@@ -240,6 +240,7 @@ static int lcurl_easy_reset(lua_State *L){
   if(p->storage != LUA_NOREF){
     lcurl_storage_free(L, p->storage);
     p->storage = lcurl_storage_init(L);
+    lua_settop(L, 1);
   }
 
   return 1;

test/test_easy.lua

@@ -885,7 +885,7 @@ function test_unset()
   gc_collect()
   assert(pfrom.value)
 
-  e:unsetopt_httppost()
+  assert_equal(e, e:unsetopt_httppost())
 
   gc_collect()
   assert(not pfrom.value)
@@ -902,7 +902,7 @@ function test_reset()
   gc_collect()
   assert(pfrom.value)
 
-  e:reset()
+  assert_equal(e, e:reset())
 
   gc_collect()
   assert(not pfrom.value)