[Asterisk-Dev] Minor makefile typo..

[Rob Thomas]

I've been thinking for a while that this is wrong, and I just did some
research:

# Pentium Pro Optimize
#PROC=i686

# Pentium & VIA processors optimize
#PROC=i586

#PROC=k6
#PROC=ppc


'PROC=i686' does some reasonably hairy P4 optimisations - a lot more
than a PPro. Perhaps this should be changed to:

(No disclaimer required, minor wording change)

---
# Optional CPU Optimisations: 

# Pentium 4 style CPUs (Socket 478, LGA775), AMD Athlon/Duron, VIA
Nehemiah
#PROC=i686

# Pentium 3, VIA C3
#PROC=i586

# Pentium II and lower
#PROC=i386
---

--Rob