[R6RS] Syntax for multiple values

[Michael Sperber]

When we had the last round of discussion on this, people seemed to
favor adopting LET-VALUES and friends.  (Including myself.)

I just finalized Sebastian Egner's SRFI 71, and I have to admit I like
it better than LET-VALUES.  Specifically, it avoids the triple opening
paren in the common case, and doesn't require me to switch from LET to
a new binding form when multiple values enter the picture---thus, it
has better "upgrade continuity."

Opinions?

-- 
Cheers =8-} Mike
Friede, V?lkerverst?ndigung und ?berhaupt blabla