Re: [PATCH v2 04/10] reftable: convert from `strbuf` to `reftable_buf`

> Convert the reftable library to use the `reftable_buf` interface instead
> of the `strbuf` interface. This is mostly a mechanical change via sed(1)
> with some manual fixes where functions for `strbuf` and `reftable_buf`
> differ. The converted code does not yet handle allocation failures. This
> will be handled in subsequent commits.
>
> Signed-off-by: Patrick Steinhardt <ps@pks.im>
> ---
>  reftable/basics.c                   |   2 +-
>  reftable/basics.h                   |   3 +-
>  reftable/block.c                    |  34 ++++----
>  reftable/block.h                    |  14 ++--
>  reftable/blocksource.c              |   6 +-
>  reftable/blocksource.h              |   3 +-
>  reftable/iter.c                     |   6 +-
>  reftable/iter.h                     |   8 +-
>  reftable/reader.c                   |  16 ++--
>  reftable/record.c                   |  80 +++++++++----------
>  reftable/record.h                   |  21 ++---
>  reftable/stack.c                    | 120 ++++++++++++++--------------
>  reftable/system.h                   |   1 -
>  reftable/writer.c                   |  66 +++++++--------
>  reftable/writer.h                   |   2 +-
>  t/unit-tests/lib-reftable.c         |   4 +-
>  t/unit-tests/lib-reftable.h         |   7 +-
>  t/unit-tests/t-reftable-basics.c    |  16 ++--
>  t/unit-tests/t-reftable-block.c     |  42 +++++-----
>  t/unit-tests/t-reftable-merged.c    |  26 +++---
>  t/unit-tests/t-reftable-reader.c    |   8 +-
>  t/unit-tests/t-reftable-readwrite.c |  92 ++++++++++-----------
>  t/unit-tests/t-reftable-record.c    |  74 ++++++++---------
>  t/unit-tests/t-reftable-stack.c     |  90 ++++++++++-----------
>  24 files changed, 371 insertions(+), 370 deletions(-)