Hi! Two things about your patch: 1. Given that you sent only a patch, you could do that without a cover letter, sending all the additional description that you want after the scissors mark (the ---); 2. Your patch is adding the entire t5601.sh file. I could compare this with the file on the next branch, where I see that you indeed changed the line 69 for using `test_path_is_file`. I suggest you to send a v2 containing only the changes that you did to that file, instead of a patch that creates this entire file.
