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/main.c b/wpa_supplicant/main.c
index c3ecbb3..1744620 100644
--- a/wpa_supplicant/main.c
+++ b/wpa_supplicant/main.c
@@ -32,7 +32,8 @@
 	       "        [-o<override driver>] [-O<override ctrl>] \\\n"
 	       "        [-N -i<ifname> -c<conf> [-C<ctrl>] "
 	       "[-D<driver>] \\\n"
-	       "        [-p<driver_param>] [-b<br_ifname>] [-I<config file>]\n"
+	       "        [-p<driver_param>] [-b<br_ifname>] [-I<config file>] "
+	       "...]\n"
 	       "\n"
 	       "drivers:\n",
 	       wpa_supplicant_version, wpa_supplicant_license);
@@ -50,7 +51,7 @@
 	       "  -c = Configuration file\n"
 	       "  -C = ctrl_interface parameter (only used if -c is not)\n"
 	       "  -i = interface name\n"
-	       "  -I = additional Configuration file\n"
+	       "  -I = additional configuration file\n"
 	       "  -d = increase debugging verbosity (-dd even more)\n"
 	       "  -D = driver name (can be multiple drivers: nl80211,wext)\n"
 	       "  -e = entropy file\n");