Add comment about async create_source_registry method.

diff --git a/backends/eds/lib/edsf-persona-store.vala b/backends/eds/lib/edsf-persona-store.vala
index 1a2eb30..393feb7 100644 (file)
--- a/backends/eds/lib/edsf-persona-store.vala
+++ b/backends/eds/lib/edsf-persona-store.vala
@@ -28,6 +28,8 @@ using GLib;
 
 extern const string BACKEND_NAME;
 
+/* The following function is needed in order to use the async SourceRegistry
+ * constructor. */
 [CCode (cname = "e_source_registry_new", cheader_filename = "libedataserver/libedataserver.h", finish_function = "e_source_registry_new_finish")]
 public extern static async E.SourceRegistry create_source_registry (GLib.Cancellable? cancellable = null) throws GLib.Error;