New review comment by loreb on void-packages repository

https://github.com/void-linux/void-packages/pull/30567#discussion_r622592173

Comment:
About the size of the patch, I was thinking that you could, more or less, clone the gnulib repo, then check for every file that is quoted in the patch that it's there semi-automatically, something like
```
$ fgrep -C3 "$(cat somefile.c | sed 's/^/+/g)" huge.patch
```

The "-C3" is to see that the patch begins and ends with the files; what is left is a few lines and most of them are trivial,
like adding the new files to the makefile.