[PATCH v5 0/3] send-email: shell completion improvements

"git send-email" completion (bash, zsh) is inconsistent, its flags are split into both git-completion.bash and git-send-email.perl, and it only emits format-patch flags.

Make shell completion uniform, centralizing completion options on git-send-email.perl.

Make "git send-email --git-completion-helper" properly emit send-email specific options, generating them programmatically.

Additionally, update git-send-email(1) man page to explicitly mention format-patch options.

Differences from V4:

Incorporate Carlo Arenas' and Ævar Arnfjörð Bjarmason's suggestion to programatically generate the flags.

I tried to be concise whilst preserving readability, hopefully it's straightforward to parse the current implementation.

Reviewers of previous versions:

- Bagas Sanjaya
- Carlo Arenas
- Junio Hamano
- Ævar Arnfjörð Bjarmason

Ævar wrote earlier:

Thanks for the heads up, I am slowly getting used to this email workflow, this is my first contribution. Hopefully I got it right this time.

Let me know if the regex approach I went with is OK. You seem to have suggested me to do something with the `GetOptions` module, but I'm afraid I only know the basics of Perl.

I tried to do something like `GetOptions($USAGE)` but it didn't quite work (clearly I have no idea how to do that :P). If you have something specific in mind, I'd appreciate if you could send a small patch back that I can incorporate. Otherwise, either way, the current regex approach isn't too horrible and seems to be reasonably reliable.

Thiago Perrotta (3):
  send-email: terminate --git-completion-helper with LF
  send-email: programmatically generate bash completions
  send-email docs: add format-patch options

 Documentation/git-send-email.txt       |  6 ++++--
 contrib/completion/git-completion.bash | 11 +----------
 git-send-email.perl                    | 21 +++++++++++++++++----
 t/t9902-completion.sh                  |  3 +++
 4 files changed, 25 insertions(+), 16 deletions(-)