agent: Improve "Insert the card" message.

* agent/findkey.c (prompt_for_card): Don't print "(null").
2022-06-17 12:23:40 +02:00 · 2022-06-17 12:23:40 +02:00 · be5d06dae2
parent 2766b9e56c
commit be5d06dae2
1 changed files with 2 additions and 1 deletions
--- a/agent/findkey.c
+++ b/agent/findkey.c
@ -1064,7 +1064,8 @@ prompt_for_card (ctrl_t ctrl, const unsigned char *grip,
                    "  %s%%0A"
                    "  %s",
                    L_("Please insert the card with serial number"),
-                    want_sn ? want_sn : "", comment) < 0)
+                    want_sn ? want_sn : "",
+                    comment? comment:"") < 0)
        err = out_of_core ();
      else
        {