[gcr] gcr: Don't show empty dates in gnupg key renderer

[Stefan Walter <stefw src gnome org>]

commit 8db137b0d9c747773d2e4978fb8295eaf2ec5f80
Author: Stef Walter <stefw collabora co uk>
Date:   Wed Nov 30 11:55:26 2011 +0100

    gcr: Don't show empty dates in gnupg key renderer
    
     * Also hide capabilities line if none are present

 gcr/gcr-gnupg-renderer.c |    2 +-
 gcr/gcr-record.c         |    8 ++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)
---
diff --git a/gcr/gcr-gnupg-renderer.c b/gcr/gcr-gnupg-renderer.c
index f3d6da9..7040577 100644
--- a/gcr/gcr-gnupg-renderer.c
+++ b/gcr/gcr-gnupg-renderer.c
@@ -375,7 +375,7 @@ append_key_record (GcrGnupgRenderer *self,
 
 	/* Capabilities */
 	value = _gcr_record_get_raw (record, GCR_RECORD_PUB_CAPS);
-	if (value != NULL) {
+	if (value != NULL && value[0] != '\0') {
 		display = capabilities_for_codes (value);
 		_gcr_display_view_append_value (view, renderer, _("Capabilities"), display, FALSE);
 		g_free (display);
diff --git a/gcr/gcr-record.c b/gcr/gcr-record.c
index 0d2f44b..157d255 100644
--- a/gcr/gcr-record.c
+++ b/gcr/gcr-record.c
@@ -607,8 +607,12 @@ _gcr_record_get_date (GcrRecord *record,
 
 	/* Try to parse as a number */
 	result = strtoul (raw, &end, 10);
-	if (end != NULL && end[0] == '\0')
-		return g_date_time_new_from_unix_utc (result);
+	if (end != NULL && end[0] == '\0') {
+		if (result == 0)
+			return NULL;
+		else
+			return g_date_time_new_from_unix_utc (result);
+	}
 
 	/* Try to parse as a date */
 	memset (&tm, 0, sizeof (tm));