enhance debug logging

vk-api.c

@@ -35,15 +35,15 @@ typedef struct {
 VkAuthData *
 vk_auth_data_parse (const gchar *auth_data_str) {
     if (auth_data_str == NULL || strlen (auth_data_str) == 0) {
-        trace ("VK auth data missing");
+        trace ("VK auth data missing\n");
         return NULL ;
     }
     VkAuthData *vk_auth_data = NULL;
     GError *error;
     JsonParser *parser = json_parser_new ();
 
     if (!json_parser_load_from_data (parser, auth_data_str, strlen (auth_data_str), &error)) {
-        trace ("VK auth data invalid");
+        trace ("VK auth data invalid\n");
         g_free (error);
         g_object_unref (parser);
         return NULL;

vkontakte.c

@@ -358,6 +358,7 @@ static gboolean
 vk_action_gtk (void *data) {
     if (vk_auth_data == NULL) {
         // not authenticated, show warning and that's it
+        trace ("VK - not authenticated\n")
         gdk_threads_enter ();
         show_message (GTK_MESSAGE_WARNING,
                       "To be able to use VKontakte plugin you need to provide your\n"
@@ -368,6 +369,7 @@ vk_action_gtk (void *data) {
     }
 
     gtk_widget_show (vk_create_browser_dialogue ());
+    trace("Widget shown\n");
     return FALSE;
 }
 
@@ -449,7 +451,7 @@ static int
 vk_ddb_connect () {
     vfs_curl_plugin = (DB_vfs_t *) deadbeef->plug_get_for_id ("vfs_curl");
     if (!vfs_curl_plugin) {
-        trace ("cURL VFS plugin required");
+        trace ("cURL VFS plugin required\n");
         return -1;
     }