Merge branch 'tc/last-modified-bloom' into seen

The 'git last-modified' command has been optimized by using Bloom filters. It now reuses revision walk filtering logic from 'git log' to pre-filter commits, and maintains per-path Bloom filters even when wildcard pathspecs are used. * tc/last-modified-bloom: last-modified: keep per-path Bloom filters for wildcard pathspecs last-modified: check pathspec against Bloom filter first revision: expose check for paths maybe changed in Bloom filter revision: move bloom keyvec precondition into function