[glib-networking] tls: Fix a leak in GTlsDatabaseGnutls

[Philip Withnall <pwithnall src gnome org>]

commit 20b2eac30d6bee6eb39727d09b8a1b90f61d9de8
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Mon Sep 22 09:57:05 2014 +0100

    tls: Fix a leak in GTlsDatabaseGnutls
    
    https://bugzilla.gnome.org/show_bug.cgi?id=737106

 tls/gnutls/gtlsdatabase-gnutls.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/tls/gnutls/gtlsdatabase-gnutls.c b/tls/gnutls/gtlsdatabase-gnutls.c
index 5ea7b24..7c4ad8c 100644
--- a/tls/gnutls/gtlsdatabase-gnutls.c
+++ b/tls/gnutls/gtlsdatabase-gnutls.c
@@ -144,6 +144,7 @@ build_certificate_chain (GTlsDatabaseGnutls      *self,
                   g_tls_certificate_gnutls_set_issuer (previous, G_TLS_CERTIFICATE_GNUTLS (issuer));
                   certificate = G_TLS_CERTIFICATE_GNUTLS (issuer);
                   certificate_is_from_db = TRUE;
+                  g_object_unref (issuer);
                   continue;
                 }
             }