[PATCH v6 00/15] add git-bugreport tool

This patchset is based on mr/show-config-scope.

Since v5, I addressed comments from Martin and Junio.

 - Reorganized the series so the ecosystem cleanup comes before the
   interesting new features.
 - Spread out manpage updates to indicate each new feature as it's added.
 - Fixed a number of patches which assumed a repo, so bugreport can now
   run anywhere.
 - Wordsmithing in the report template.
 - die() instead of overwriting an existing report.
 - Added --suffix to allow user to change the name of the report to
   git-bugreport-<strftime format>.txt.
 - General NULL-ptr, leak, and bashism cleanup.
 - Changed safelist macro from bugreport:include[x] to
   annotate:bugreport[include].
 - Use git_config_get_value_multi() instead of a config callback to
   gather the safelist configs.
 - Added a convenience for_each_pack() macro to object-store.h and began
   using it in packfile.c and bugreport.c for pack summary

Emily Shaffer (15):
  help: move list_config_help to builtin/help
  help: add shell-path to --build-options
  bugreport: add tool to generate debugging info
  bugreport: gather git version and build info
  bugreport: add uname info
  bugreport: add compiler info
  bugreport: add git-remote-https version
  bugreport: include user interactive shell
  bugreport: generate config safelist based on docs
  bugreport: add config values from safelist
  bugreport: collect list of populated hooks
  bugreport: count loose objects
  bugreport: add packed object summary
  bugreport: list contents of $OBJDIR/info
  bugreport: summarize contents of alternates file

 .gitignore                              |   3 +
 Documentation/asciidoc.conf             |   9 +
 Documentation/asciidoctor-extensions.rb |   5 +
 Documentation/config/sendemail.txt      |  56 ++--
 Documentation/git-bugreport.txt         |  55 ++++
 Makefile                                |  27 +-
 bugreport.c                             | 409 ++++++++++++++++++++++++
 builtin/help.c                          |  86 +++++
 compat/compiler.h                       |  24 ++
 generate-bugreport-config-safelist.sh   |  17 +
 generate-cmdlist.sh                     |  19 --
 generate-configlist.sh                  |  24 ++
 help.c                                  | 132 ++------
 help.h                                  |   2 +-
 object-store.h                          |   6 +
 packfile.c                              |   3 +-
 remote-curl.c                           |   8 +
 t/t0091-bugreport.sh                    |  49 +++
 18 files changed, 778 insertions(+), 156 deletions(-)
 create mode 100644 Documentation/git-bugreport.txt
 create mode 100644 bugreport.c
 create mode 100644 compat/compiler.h
 create mode 100755 generate-bugreport-config-safelist.sh
 create mode 100755 generate-configlist.sh
 create mode 100755 t/t0091-bugreport.sh