nat: Fix the grammar of the sentence for listing open sccp connections
diff --git a/openbsc/src/nat/bsc_nat_vty.c b/openbsc/src/nat/bsc_nat_vty.c
index 0bbd313..4dbec0a 100644
--- a/openbsc/src/nat/bsc_nat_vty.c
+++ b/openbsc/src/nat/bsc_nat_vty.c
@@ -112,7 +112,7 @@
       SHOW_STR "Display information about current SCCP connections")
 {
 	struct sccp_connections *con;
-	vty_out(vty, "Listing all opening SCCP connections%s", VTY_NEWLINE);
+	vty_out(vty, "Listing all open SCCP connections%s", VTY_NEWLINE);
 
 	llist_for_each_entry(con, &_nat->sccp_connections, list_entry) {
 		vty_out(vty, "For BSC Nr: %d lac: %d; BSC ref: 0x%x; MUX ref: 0x%x; Network has ref: %d ref: 0x%x MSC/BSC mux: 0x%x/0x%x type: %s%s",