wpa_supplicant: fix memory leak in -I option handling

Change-Id: I1b393d245d606882e7bb548135d1eab99a988a81
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/wpa_supplicant/wpa_supplicant.c b/wpa_supplicant/wpa_supplicant.c
index 398fca1..4483173 100644
--- a/wpa_supplicant/wpa_supplicant.c
+++ b/wpa_supplicant/wpa_supplicant.c
@@ -399,6 +399,9 @@
 	os_free(wpa_s->confname);
 	wpa_s->confname = NULL;
 
+	os_free(wpa_s->confanother);
+	wpa_s->confanother = NULL;
+
 	wpa_sm_set_eapol(wpa_s->wpa, NULL);
 	eapol_sm_deinit(wpa_s->eapol);
 	wpa_s->eapol = NULL;