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-rw-r--r--glib/dbus-gproxy.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/glib/dbus-gproxy.c b/glib/dbus-gproxy.c
index 8a68b663..d9469d2f 100644
--- a/glib/dbus-gproxy.c
+++ b/glib/dbus-gproxy.c
@@ -2322,7 +2322,8 @@ dbus_g_proxy_end_call (DBusGProxy *proxy,
* values. This function is equivalent to dbus_g_proxy_begin_call
* followed by dbus_g_proxy_end_call. All of the input arguments are
* specified first, followed by G_TYPE_INVALID, followed by all of the
- * output values, followed by G_TYPE_INVALID.
+ * output values, followed by a second G_TYPE_INVALID. Note that
+ * this means you must always specify G_TYPE_INVALID twice.
*
* @param proxy a proxy for a remote interface
* @param method method to invoke