Make if condition in sharness lib silent

License: MIT
Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>

test/sharness/lib/test-lib.sh

@@ -194,7 +194,7 @@ test_set_address_vars() {
 		GWAY_PORT=$(port_from_maddr $GWAY_MADDR)
 	'
 
-	if ipfs swarm addrs local; then
+	if ipfs swarm addrs local >/dev/null 2>&1; then
 		test_expect_success "set swarm address vars" '
 		ipfs swarm addrs local > addrs_out &&
 			SWARM_MADDR=$(grep "127.0.0.1" addrs_out) &&