[metapost] subpath description in The METAFONTbook

[Alan Bram]

> But then, this sentence would no longer hold:
> 
>> Reading the manual does not require knowledge of \MF\ or
>> access to {\sl The \MF book}, but both are beneficial.
> 
> Well, it never hold, but that would become more obvious with direct page
> references to The MFbook.
> 
> Don't really know how to handle this situation ...

You know what?  I actually think that sentence does a disservice to
the user.  I read the MP manual over and over again through the years,
and I always remember that sentence.  And I always felt that I wasn't
quite "getting it", never really understood.  In fact, I felt as if I
were a long way away from getting it.

Then one day I read the MFbook.  What a revelation!

I guess you could argue that I should have heeded the "both are
beneficial".  But I for one think that's not strong enough.


Cheers,
 - arb