Re: Fix for seg picksplit function

Hmm, the second for loop in gseg_picksplit uses "i < maxoff" whereas the
other one uses <=.  The first is probably correct; if the second is also
correct it merits a comment on the discrepancy (To be honest, I'd get
rid of the "-1" in computing maxoff and use < in both places, given that
offsets are 1-indexed).  Also, the second one is using i++ to increment;
probably should be OffsetNumberNext just to stay consistent with the
rest of the code.

The assignment to *left and *right at the end of the routine seem pretty
useless (not to mention the comment talking about a routine that doesn't
exist anywhere).

-- 
Álvaro Herrera <alvherre@commandprompt.com>
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