networking: add missing brackets

Our codestyle demands having brackets also around if-blocks made up
by one line only.

In patch "networking: add and implement net_addr_ll_set() API" this
rule was not respected and a new one-line-if-block was added with no
brackets.

Fix this by adding the related brackets as needed.

Signed-off-by: Antonio Quartulli <[email protected]>
Acked-by: Gert Doering <[email protected]>
Message-Id: <[email protected]>
URL: https://www.mail-archive.com/[email protected]/msg22908.html
Signed-off-by: Gert Doering <[email protected]>

Author: ordex

src/openvpn/networking_iproute2.c

@@ -107,7 +107,9 @@ net_addr_ll_set(openvpn_net_ctx_t *ctx, const openvpn_net_iface_t *iface,
     argv_msg(M_INFO, &argv);
     if (!openvpn_execve_check(&argv, ctx->es, M_WARN,
                               "Linux ip link set addr failed"))
+    {
         ret = -1;
+    }
 
     argv_free(&argv);