KNF switch statements.

No functional change.
-- 
:wq Claudio

Index: if_wg.c
===================================================================
RCS file: /cvs/src/sys/net/if_wg.c,v
diff -u -p -r1.45 if_wg.c
--- if_wg.c	10 Jul 2025 05:28:13 -0000	1.45
+++ if_wg.c	17 Jul 2025 12:35:30 -0000
@@ -617,11 +617,16 @@ wg_aip_add(struct wg_softc *sc, struct w
 	int		 ret = 0;
 
 	switch (d->a_af) {
-	case AF_INET:	root = sc->sc_aip4; break;
+	case AF_INET:
+		root = sc->sc_aip4;
+		break;
 #ifdef INET6
-	case AF_INET6:	root = sc->sc_aip6; break;
+	case AF_INET6:
+		root = sc->sc_aip6;
+		break;
 #endif
-	default: return EAFNOSUPPORT;
+	default:
+		return EAFNOSUPPORT;
 	}
 
 	if ((aip = pool_get(&wg_aip_pool, PR_NOWAIT|PR_ZERO)) == NULL)
@@ -671,11 +676,16 @@ wg_aip_remove(struct wg_softc *sc, struc
 	int		 ret = 0;
 
 	switch (d->a_af) {
-	case AF_INET:	root = sc->sc_aip4; break;
+	case AF_INET:
+		root = sc->sc_aip4;
+		break;
 #ifdef INET6
-	case AF_INET6:	root = sc->sc_aip6; break;
+	case AF_INET6:
+		root = sc->sc_aip6;
+		break;
 #endif
-	default: return EAFNOSUPPORT;
+	default:
+		return EAFNOSUPPORT;
 	}
 
 	rw_enter_write(&sc->sc_aip_lock);