[PATCH v5 00/10] Long names for `git log -S` and `git log -G`

Rebased v4 [1] on top of `master`. I've accidentally published v4 based on `next`.

[1] https://lore.kernel.org/git/20250211085028.3923875-1-illia.bobyr@gmail.com/

Other than the rebase, it is identical to v4, details below.

Split the big change from v3 [1] into multiple, mostly independent patches, to make it easier to review and merge each one separately.

Patches 1 through 4 are fixing minor bugs and inconsistencies.

Patch 5 contains updates gitdiffcore to use same placeholder names as the rest of the code.

Patch 6 contains a minimum change to add long versions of -S and -G.

Patch 7 adds bash completion support.

Patches 8 through 10 increase usage of the long argument versions in tests, CLI help and docs respectively.

Please, let me know if you prefer it split in a different way, or reorder the changes.

Illia Bobyr (10):
  t/t4209-log-pickaxe: Naming typo: -G takes a regex
  diff: -G description: Correct copy/paste error
  diff: short help: Correct -S description
  diff: short help: Add -G and --pickaxe-grep
  docs: gitdiffcore: -G and -S: Use regex/string placeholders
  diff: --patch-{grep,modifies} arg names for -G and -S
  completion: Support --patch-{grep,modifies}
  diff: test: Use --patch-{grep,modifies} over -G/-S
  diff: --pickaxe-{all,regex} help: Add --patch-{grep,modifies}
  diff: docs: Use --patch-{grep,modifies} over -G/-S

 Documentation/diff-options.txt         |  36 +++++----
 Documentation/git-blame.txt            |   2 +-
 Documentation/gitdiffcore.txt          |  55 ++++++-------
 contrib/completion/git-completion.bash |  11 ++-
 diff.c                                 |  18 +++--
 diff.h                                 |  11 ++-
 t/t4062-diff-pickaxe.sh                |   8 +-
 t/t4209-log-pickaxe.sh                 | 106 +++++++++++++++++--------
 8 files changed, 155 insertions(+), 92 deletions(-)