[PATCH 00/10] fast export and import fixes and features

This is a series of ten patches representing two doc corrections, one pedantic fix, three real bug fixes, one micro code refactor, and three new features. Each of these ten changes is relatively small in size. These changes predominantly affect fast-export, but there's a couple small changes for fast-import as well.

I could potentially split these patches up, but I'd just end up chaining them sequentially since otherwise there'd be lots of conflicts; having 10 different single patch series with lots of dependencies sounded like a bigger pain to me, but let me know if you would prefer I split them up and how you suggest doing so.

These patches were driven by the needs of git-repo-filter[1], but most if not all of them should be independently useful.

Elijah Newren (10):
  git-fast-import.txt: fix documentation for --quiet option
  git-fast-export.txt: clarify misleading documentation about rev-list
    args
  fast-export: use value from correct enum
  fast-export: avoid dying when filtering by paths and old tags exist
  fast-export: move commit rewriting logic into a function for reuse
  fast-export: when using paths, avoid corrupt stream with non-existent
    mark
  fast-export: ensure we export requested refs
  fast-export: add --reference-excluded-parents option
  fast-export: add a --show-original-ids option to show original names
  fast-export: add --always-show-modify-after-rename

 Documentation/git-fast-export.txt |  33 ++++++-
 Documentation/git-fast-import.txt |   7 +-
 builtin/fast-export.c             | 156 +++++++++++++++++++++++-------
 fast-import.c                     |  17 ++++
 t/t9350-fast-export.sh            | 124 +++++++++++++++++++++++-
 5 files changed, 293 insertions(+), 44 deletions(-)

[1] https://github.com/newren/git-repo-filter if you're really curious, but ***** IT HAS SEVERAL SHARP EDGES *****. It isn't really ready for review/testing/usage/announcing/etc; in fact, it's not quite WIP/RFC ready. (Further, it's not clear if it should somehow become part of core git, should go into contrib, or just remain separate indefinitely.) Anyway, please do not attempt to use it for anything real yet. I'll send out an email when I think it's closer to ready.