The first patch is an optimization of the line-level log machinery.
The rest are cleanups in the area that I subjectively consider slight
improvements.

SZEDER Gábor (4):
  line-log: avoid unnecessary tree diffs when processing merge commits
  line-log: get rid of the parents array in
    process_ranges_merge_commit()
  line-log: initialize diff queue in process_ranges_ordinary_commit()
  line-log: simplify condition checking for merge commits

 line-log.c | 50 ++++++++++++++++++++------------------------------
 1 file changed, 20 insertions(+), 30 deletions(-)

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2.51.0.433.g1a66b3fb12