log: rsl notice: tiny tweak for readability

Change-Id: I57c3b7d27d857c96e3fa3dacf7b766bc43100fc3
diff --git a/openbsc/src/libbsc/abis_rsl.c b/openbsc/src/libbsc/abis_rsl.c
index d9ca550..9af986a 100644
--- a/openbsc/src/libbsc/abis_rsl.c
+++ b/openbsc/src/libbsc/abis_rsl.c
@@ -790,7 +790,7 @@
 	osmo_timer_del(&lchan->T3109);
 
 	if (lchan->state == LCHAN_S_REL_ERR) {
-		LOGP(DRSL, LOGL_NOTICE, "%s is in error state not sending release.\n",
+		LOGP(DRSL, LOGL_NOTICE, "%s is in error state, not sending release.\n",
 		     gsm_lchan_name(lchan));
 		return -1;
 	}