reftable/block: introduce macro to initialize struct block_iter
There are a bunch of locations where we initialize members of `struct block_iter`, which makes it harder than necessary to expand this struct to have additional members. Unify the logic via a new `BLOCK_ITER_INIT` macro that initializes all members. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano

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@ -86,6 +86,10 @@ struct block_iter {
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struct strbuf last_key;
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};
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#define BLOCK_ITER_INIT { \
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.last_key = STRBUF_INIT, \
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}
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/* initializes a block reader. */
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int block_reader_init(struct block_reader *br, struct reftable_block *bl,
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uint32_t header_off, uint32_t table_block_size,
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