New comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/23485#issuecomment-663922330

Comment:
- `printf(3)` is incorrect if help/version contains `%`,
either use `puts(3)` instead or
```cpp
printf("%s", $arg);
```
- Add a newline between include and main
- In case you don't know, we can quote EOF to save extra quoting in here doc.
```sh
if [ "$CROSS_BUILD" ]; then
	hostmakedepends+=" tcc"
	post_patch() {
		cpp -dM src/fatsort.c | grep '#define INFO' > man/info.h
		cat > man/fatsort.sh <<-'EOF'
		#!/bin/sh
		case $1 in
			"--help")       arg="INFO_OPTION_HELP" ;;
			"--version")    arg="INFO_OPTION_VERSION" ;;
		esac
		echo '#include "info.h"' "int main(){return printf(\"%s\", $arg) > 0;}" |
		tcc -run -
		EOF
		chmod 755 man/fatsort.sh
		vsed -i man/Makefile -e 's|../src/fatsort|./fatsort.sh|'
	}
fi
```