[Twisted-Python] Don't Thread On Me t-shirt proposal

[Marco Giusti]

On Thu, Oct 21, 2010 at 05:02:03PM +1000, Stephen Thorne wrote:
> On 2010-10-21, Marco Giusti wrote:
> > On Wed, Oct 20, 2010 at 08:00:54PM -0400, David Ripton wrote:
> > > On 10/20/10 17:10, Laurens Van Houtven wrote:
> > > 
> > > > Feedback is welcome: do you think the layout or relative sizes should be
> > > > changed? Is the apostrophe being missing okay?
> > > 
> > > I think the missing apostrophe looks bad.
> > 
> > Stupid question from a non anglophone: why the apostrophe is missing?
> 
> "DONT THREAD ON ME" is the text on the shirt. "Don't" is a contraction
> of "Do not" and requires an apostrophe. 

Perhaps I have not explained well, I'm sorry. I know that "don't" is a
contraction of "do not", but why the text on the flag lacks of the
apostrophe? Does it have a meaning or is it a grammatical error?