Fix silly code that printfs NULL when there are no fractional seconds

on a GENREALIZEDTIME (which there should really never be for anything
remotely standards compliant)
ok jsing@

diff --git a/lib/libcrypto/asn1/t_x509.c b/lib/libcrypto/asn1/t_x509.c
index 14cbabe..3dfaaa4 100644 (file)
--- a/lib/libcrypto/asn1/t_x509.c
+++ b/lib/libcrypto/asn1/t_x509.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: t_x509.c,v 1.27 2017/01/29 17:49:22 beck Exp $ */
+/* $OpenBSD: t_x509.c,v 1.28 2017/04/03 15:52:59 beck Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -398,7 +398,7 @@ ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
        int gmt = 0;
        int i;
        int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
-       char *f = NULL;
+       char *f = "";
        int f_len = 0;
 
        i = tm->length;