This prevents the untracked content error when adding lexima.vim as a submodule.
> git submodule add -b master https://github.com/cohama/lexima.vim.git pack\plugins\start\lexima.vim
> git status
...
Changes not staged for commit:
(use "git add <file>..." to update what will be committed)
(use "git restore <file>..." to discard changes in working directory)
(commit or discard the untracked or modified content in submodules)
modified: pack/plugins/start/lexima.vim (untracked content)
This prevents the
untracked content
error when adding lexima.vim as a submodule.