Is there a way to reuse the previous comment on a git commit?

Question

Occasionally I will drop into troubleshooting mode and commit/push a number of small but separate commits with a comment like, \"Troubleshooting the during

Answer 1

From the git-commit(1) command documentation,

-C 
--reuse-message=
Take an existing commit object, and reuse the log message and the authorship 
information (including the timestamp) when creating the commit.

-c 
--reedit-message=
Like -C, but with -c the editor is invoked, so that the user can further edit 
the commit message.

It's then possible using,

  git commit --reuse-message=HEAD

Update:

You may also need to use the --reset-author option,

--reset-author
When used with -C/-c/--amend options, declare that the authorship of the 
resulting commit now belongs of the committer. This also renews the author 
timestamp.