[GSOC PATCH 0/2] builtin/fmt-merge-msg: remove dependency on global variables and 'the_repository'

The aim of this patch series is to remove the definition '#define USE_THE_REPOSITORY_VARIABLE' from "builtin/fmt-merge-msg.c" by removing global variable 'merge_log_config' and the global 'the_repository'

This patch series contains two patches:

1 - Remove the global varaible 'merge_log_config' and add a function 'adjust_shortlog_len()'
    in fmt-merge-msg.{c,h} to replicate the variable's usage.

2 - Remove the dependency of 'the_repository' in "builtin/fmt-merge-msg.c", allowing the removal
    of the definition '#define USE_THE_REPOSITORY_VARIABLE'. Also add a test to make sure that
    "git fmt-merge-msg -h" can be called with repository being NULL.

Ayush Chandekar (2):
  environment: remove the global variable 'merge_log_config'
  builtin/fmt-merge-msg: stop depending on 'the_repository'

 builtin/fmt-merge-msg.c |  9 ++++-----
 builtin/merge.c         |  4 ++--
 environment.c           |  2 --
 fmt-merge-msg.c         | 30 ++++++++++++++++++++++--------
 fmt-merge-msg.h         |  3 ++-
 t/t1517-outside-repo.sh |  7 +++++++
 6 files changed, 37 insertions(+), 18 deletions(-)