Quiet two PVS-studio warnings.

plugins/sudoers/audit.c

@@ -253,7 +253,7 @@ log_server_accept(struct eventlog *evlog)
     if (SLIST_EMPTY(&def_log_servers))
 	debug_return_bool(true);
 
-    if (ISSET(sudo_mode, MODE_POLICY_INTERCEPTED)) {
+    if (client_closure != NULL && ISSET(sudo_mode, MODE_POLICY_INTERCEPTED)) {
 	/* Older servers don't support multiple commands per session. */
 	if (!client_closure->subcommands)
 	    debug_return_bool(true);

plugins/sudoers/auth/sudo_auth.c

@@ -314,7 +314,7 @@ verify_user(struct passwd *pw, char *prompt, int validated,
 
 	/* Get the password unless the auth function will do it for us */
 	if (!standalone) {
-	    if (IS_NONINTERACTIVE(auth_switch)) {
+	    if (IS_NONINTERACTIVE(&auth_switch[0])) {
 		status = AUTH_NONINTERACTIVE;
 		goto done;
 	    }