bsc/vty: Provide a hint of available input
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_vty.c b/openbsc/src/osmo-bsc/osmo_bsc_vty.c
index 8103ffc..d871f01 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_vty.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_vty.c
@@ -314,7 +314,7 @@
       cfg_net_bsc_codec_list_cmd,
       "codec-list .LIST",
       "Set the allowed audio codecs\n"
-      "List of audio codecs\n")
+      "List of audio codecs, e.g. fr3 fr1 hr3\n")
 {
 	struct osmo_msc_data *data = osmo_msc_data(vty);
 	int saw_fr, saw_hr;