Missing X-Trac-Ticket-URL header in ticket notification mail since 1.1.3

[Jun Omae]

We should add header like this.

X-Trac-Ticket-URL: http://trac-hacks.org/ticket/12158#comment:4

MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 8bit
X-Trac-Realm: ticket
From: "My Project" <trac@localhost>
X-Trac-Version: 1.1.3
Precedence: bulk
Auto-Submitted: auto-generated
X-Mailer: Trac 1.1.3, by Edgewall Software
To: undisclosed-recipients: ;
References: <011.5820a89cc2c970d854f42757ba2afba4@localhost>
X-Trac-Project: My Project
In-Reply-To: <011.5820a89cc2c970d854f42757ba2afba4@localhost>
Date: Thu, 22 Jan 2015 04:58:51 -0000
Reply-To: trac@localhost
Message-ID: <026.95f8819ec9a6fc74629637032ed18e26@localhost>
X-URL: 
Subject: Re: [My Project] #1: test

#1: test
...

See ​th:#12158