Issue 0006844: show email recipients instead of a success info.
Though mantis email recipients management is good, I don't like it silence.
I want to know where the notifier email goes. So I made a tweak to show email
recipients after notifier emails are sent.
It fairly easy. Use a global array $g_email_recipients to record recipients.
And print recipients username, realname, and email address.
Patch is in the attachment.