[GNC] Addition of Mailing List Subject Prefix

[johnny]

hola

On 04/10/2018 16:20, listreader wrote:
> The prefix is EXTREMELY useful to me. So add me to the 'approve' side
> of your tally.
me too.

and really- what is all this bitching about? 5 extra chars at the front 
of an email subject ...

humans have a great ability to not see what is right in front of their 
faces. talk to some of your least favorite family members or 
acquaintances if you don't believe me. so just use those skills to 
ignore this filtering prefix that is widely used and appreciated and 
very helpful to many of the list readers.

thank you