apps/ca.c: only output DER with SPKAC input and when -out is chosen

So say the docs

Fixes #8055

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8368)

1 files changed, 1 insertions, 1 deletions

diff --git a/apps/ca.c b/apps/ca.c
index b4ac86d4aa..4464b2ba86 100644
--- a/apps/ca.c
+++ b/apps/ca.c
@@ -722,7 +722,7 @@ end_of_options:
 
     /*****************************************************************/
     if (req || gencrl) {
-        if (spkac_file != NULL) {
+        if (spkac_file != NULL && outfile != NULL) {
             output_der = 1;
             batch = 1;
         }