Rather than allocate a HH_HOP_RANGE large array of buckets, allocate
just 1 if the initial size is 1, then jump to HH_HOP_RANGE as soon as a
second element is added to the table. There are quite a few cases where
hash tables are created where there never be more than 1 (or even 0)
elements in the table (e.g., a writer without readers, a reader for a
keyless topic).
Signed-off-by: Erik Boasson <eb@ilities.com>
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