[Bug other/78161] [7 Regression] contrib/download_prerequisites fails on MacOS, Lubuntu, and Windows

[damian at sourceryinstitute dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78161

--- Comment #2 from Damian Rouson <damian at sourceryinstitute dot org> ---
I could close this because it turned out the failures were my error (I was
using a modified version of the script but thinking I was using the downloaded
version of the script).  If it's ok, I'll keep it open with the expectation
that I'll still submit a patch this week to broaden the download options, which
seems like a good idea, despite the fact that my bug report was a false alarm.