Re: [Libguestfs] [PATCH libguestfs 2/5] guestfish: write --help to stdout, use gnulib's progname module

There are a couple of compelling arguments for making the change in general: - testing and reproducibility: with the change, all diagnostics start with the constant string, "program_name: ". Otherwise, you'll have most that are that way, yet a few that then start with an absolute directory name and end in "/.libs/lt-program_name: ". Worse still, in some environments, that leading directory name will vary from run to run depending on mount point names. - overall uniformity. in building the tools and testing them, we've seen how much output you may have to wade through when diagnosing a problem. If we ensure that all diagnostics start with "program_name: " it's that much easier to be sure that a quick use of grep finds all error messages. If it will make it easier to accept, I will add some small tests that verify the expected behavior.