Small compilation problem/manual typographical error

[nhunt@lehman.com (Noel Hunt)]

The function `s48_do_gc' in `scheme48heap.c' is typed as
`void' but it has two return statments in it. I don't
know how gcc handles that but the Sun/Forte compiler will
generate and error.

In the manual introduction, section 1.8, `A word about Unix
standards':

 Rest assured that this nowhere in this manual will you encounter an attempt
 to spell it all out for you;

I believe the first `this' is incorrect.