[gdm] Add comment about pam environment point to bug 627530

[Ray Strode <halfline src gnome org>]

commit bbfd5a70eb005fd27f9141d856ddeb0d36756983
Author: Ray Strode <rstrode redhat com>
Date:   Wed Sep 15 14:23:06 2010 -0400

    Add comment about pam environment point to bug 627530
    
    Tyson Whitehead produced a patch that changes how we handle
    the environment passed to pam.  This commit adds a reference
    to that patch in the comments.

 daemon/gdm-session-worker.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/daemon/gdm-session-worker.c b/daemon/gdm-session-worker.c
index 3715396..11dc800 100644
--- a/daemon/gdm-session-worker.c
+++ b/daemon/gdm-session-worker.c
@@ -1510,6 +1510,8 @@ gdm_session_worker_set_environment_variable (GdmSessionWorker *worker,
         /* FIXME: maybe we should use use pam_putenv instead of our
          * own hash table, so pam can override our choices if it knows
          * better?
+         *
+         * See https://bugzilla.gnome.org/show_bug.cgi?id=627530
          */
         g_hash_table_replace (worker->priv->environment,
                               g_strdup (key),