APPS: Add check for multiple 'unknown' options

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/16416)

1 files changed, 1 insertions, 0 deletions

diff --git a/apps/ts.c b/apps/ts.c
index 8e58ef00b4..2497c3b32a 100644
--- a/apps/ts.c
+++ b/apps/ts.c
@@ -181,6 +181,7 @@ int ts_main(int argc, char **argv)
     if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
         goto end;
 
+    opt_set_unknown_name("digest");
     prog = opt_init(argc, argv, ts_options);
     while ((o = opt_next()) != OPT_EOF) {
         switch (o) {