Can you configure your editor to add a trailing whitespace on save? :)

This is sort of a convention in source code and human-readable files in Unix in general, because it makes outputting the file with `cat` nicer — `cat` doesn't add a trailing newline, so when you `cat` a file w/o a trailing newline, the prompt ends up being squished on the last line of the file. Also if you `cat` multiple files, they don't get concatenated nicely.