tree-wide: use structured initialization for sockaddr_un

src/nspawn/nspawn.c

@@ -2815,7 +2815,8 @@ static int setup_sd_notify_child(void) {
         static const int one = 1;
         int fd = -1;
         union sockaddr_union sa = {
-                .sa.sa_family = AF_UNIX,
+                .un.sun_family = AF_UNIX,
+                .un.sun_path = NSPAWN_NOTIFY_SOCKET_PATH,
         };
         int r;
 
@@ -2826,11 +2827,10 @@ static int setup_sd_notify_child(void) {
         (void) mkdir_parents(NSPAWN_NOTIFY_SOCKET_PATH, 0755);
         (void) unlink(NSPAWN_NOTIFY_SOCKET_PATH);
 
-        strncpy(sa.un.sun_path, NSPAWN_NOTIFY_SOCKET_PATH, sizeof(sa.un.sun_path));
         r = bind(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
         if (r < 0) {
                 safe_close(fd);
-                return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path);
+                return log_error_errno(errno, "bind(" NSPAWN_NOTIFY_SOCKET_PATH ") failed: %m");
         }
 
         r = userns_lchown(NSPAWN_NOTIFY_SOCKET_PATH, 0, 0);