This patch series completely fixes #636.

The issue is about amending the usage-strings (for command flags such as -h,
-v etc.) which do not follow the style convention/guide. There was a PR
[https://github.com/gitgitgadget/git/pull/920] addressing this issue but as
Johannes [https://github.com/dscho] said in his comment
[https://github.com/gitgitgadget/git/issues/636#issuecomment-1018660439],
there are some files that still have those kind of usage strings. Johannes
also suggested to add a CI check under ci/test-documentation.sh to check the
usage strings.

In this version, comments added and the From field of the first commit
message is updated (i.e. "Abhradeep Chakraborty" instead of "Abhra303")

Changes since v2:

 1. split the single commit into two logically separated commits ( one
    addressing amending of usage strings and another is for adding the style
    checks to parse_options_check())
 2. the checks are simplified.

Changes since v1:

 1. remove check-usage-strings.sh
 2. remove CI check
 3. add checks to parse-options.c
 4. modify t/t1502-rev-parse-parseopt.sh to pass the test

Until v1:

A shell script check-usage-strings.sh was introduced to check the
usage-strings. CI check for the same was also introduced.

Abhradeep Chakraborty (2):
  amend remaining usage strings according to style guide
  parse-options.c: add style checks for usage-strings

 builtin/bisect--helper.c      |  2 +-
 builtin/reflog.c              |  6 +++---
 builtin/submodule--helper.c   |  2 +-
 diff.c                        |  2 +-
 parse-options.c               | 11 +++++++++++
 t/helper/test-run-command.c   |  6 +++---
 t/t1502-rev-parse-parseopt.sh |  4 ++--
 7 files changed, 22 insertions(+), 11 deletions(-)

base-commit: e6ebfd0e8cbbd10878070c8a356b5ad1b3ca464e

Submitted-As: https://lore.kernel.org/git/pull.1147.v4.git.1645766599.gitgitgadget@gmail.com
In-Reply-To: https://lore.kernel.org/git/pull.1147.git.1645030949730.gitgitgadget@gmail.com
In-Reply-To: https://lore.kernel.org/git/pull.1147.v2.git.1645545507689.gitgitgadget@gmail.com
In-Reply-To: https://lore.kernel.org/git/pull.1147.v3.git.1645626455.gitgitgadget@gmail.com