Report output ccache errors getting initial creds

In init_creds_step_reply, if we get an error storing output
credentials, do set ctx->complete (since retrieving creds or times
will work at this point) but don't suppress the error code.

(cherry picked from commit feeddfb)

ticket: 8145 (new)
version_fixed: 1.11.6
status: resolved

src/lib/krb5/krb/get_in_tkt.c

@@ -1691,7 +1691,6 @@ init_creds_step_reply(krb5_context context,
     krb5_preauth_request_context_fini(context);
 
     /* success */
-    code = 0;
     ctx->complete = TRUE;
 
 cleanup: