fix: typo in comment (backport #17635) (#17636)

Co-authored-by: Bryan White <[email protected]>

client/config/config.go

@@ -52,7 +52,7 @@ func ReadFromClientConfig(ctx client.Context) (client.Context, error) {
 	configFilePath := filepath.Join(configPath, "client.toml")
 	conf := DefaultConfig()
 
-	// when config.toml does not exist create and init with default values
+	// when client.toml does not exist create and init with default values
 	if _, err := os.Stat(configFilePath); os.IsNotExist(err) {
 		if err := os.MkdirAll(configPath, os.ModePerm); err != nil {
 			return ctx, fmt.Errorf("couldn't make client config: %v", err)