bug#47660: Add link to the ticket when someone reply

[Leo Famulari]

On Thu, Apr 08, 2021 at 05:38:59PM +0000, bo0od wrote:
> Hi There,
> 
> When someone reply to my ticket and receive the message through email there
> is no URL included to the ticket, Which mean if i forgot what i have wrote
> before then i need to go and see what was the conversation by using ticket
> title in gnu bug which not nice.
> 
> Please add URL of the ticket always to the bottom.

If you find yourself forgetting, you can use the bug number.

The bug number is in the email address and the subject line, and you can
use it like this:

https://issues.guix.gnu.org/issue/47660

Does that help?