Fix return code in cert_app
diff --git a/programs/x509/cert_app.c b/programs/x509/cert_app.c
index dc541d3..c97fa04 100644
--- a/programs/x509/cert_app.c
+++ b/programs/x509/cert_app.c
@@ -351,6 +351,8 @@
             cur = cur->next;
         }
 
+        ret = 0;
+
         /*
          * 1.3 Verify the certificate
          */