api comment: fix example of osmo_mobile_identity_encode_msgb
The previous example showed a type == IMSI while setting a TMSI value.
Rather show how to encode IMSI digits.
Change-Id: I41af6bf0d61443465172123297b1228584d791d6
diff --git a/src/gsm/gsm48.c b/src/gsm/gsm48.c
index 4368ce2..eb1d055 100644
--- a/src/gsm/gsm48.c
+++ b/src/gsm/gsm48.c
@@ -751,7 +751,8 @@
/*! Encode Mobile Identity type and BCD digits, appended to a msgb.
* Example to add a GSM48_IE_MOBILE_ID IEI with tag and length to a msgb:
*
- * struct osmo_mobile_identity mi = { .type = GSM_MI_TYPE_IMSI, .tmsi = random_tmsi, };
+ * struct osmo_mobile_identity mi = { .type = GSM_MI_TYPE_IMSI };
+ * OSMO_STRLCPY_ARRAY(mi.imsi, "1234567890123456");
* uint8_t *l = msgb_tl_put(msg, GSM48_IE_MOBILE_ID);
* int rc = osmo_mobile_identity_encode_msgb(msg, &mi, false);
* if (rc < 0)