[PATCH BlueZ] client: Fix memory leak due to the option to register an agent

When bluetoothctl runs with the command line option "-a <capability>", it
does not free the variable auto_register_agent registering the initial
agent and allocates new memory for it.

This frees the allocated memory before allocating new memory.
(The related commit id is 6db3470c2ea161b4b808ad1fc80dfd7e014fd359.)

---
 client/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/client/main.c b/client/main.c
index 2f269af..9b01dfb 100644
--- a/client/main.c
+++ b/client/main.c

@@ -2358,6 +2358,7 @@ static gboolean parse_agent(const char *key, const char *value,
 	if (!value)
 		return FALSE;
 
+	g_free(auto_register_agent);
 	auto_register_agent = g_strdup(value);
 
 	return TRUE;

-- 
2.7.4