fetchurl: improve GNU Savannah mirrors

Changed files
+7 -1
pkgs
build-support
fetchurl
+7 -1
pkgs/build-support/fetchurl/mirrors.nix
···
# GNU Savannah
savannah = [
-
# Mirrors from https://download-mirror.savannah.gnu.org/releases/00_MIRRORS.html
+
# Try the official HTTP(S) dispatchers first.
+
# These generate redirects to mirrors appropriate for the user.
+
"https://download.savannah.gnu.org/releases/"
+
"https://download.savannah.nongnu.org/releases/"
+
+
# If the above fail, try some individual mirrors.
+
# These are taken from https://download-mirror.savannah.gnu.org/releases/00_MIRRORS.html
"https://mirror.easyname.at/nongnu/"
"https://savannah.c3sl.ufpr.br/"
"https://mirror.csclub.uwaterloo.ca/nongnu/"