Correct stale command usage details in the affected man pages
Adds "Git Extras" to all the headers. Updates all the dates to the last modification.
This expects a target git directory. If it's not a git directory, (e.g. a simple directory) then it will pass through to `git clone` which will raise an error. Here I'm clarifying that this tool will reset local *git directories* specifically.
All files for git-force-clone, a command for overwriting local repos when closing repositories.