sde-download: allow redirects when probing mirrors

Signed-off-by: Alejandro Mery <amery@geeks.cl>

lib/sde-download/mirror-test.sh

@@ -47,7 +47,7 @@ while read name country admin url ; do
 
 	# test
 	echo -n "Testing <$name> ($country) ..." 1>&2
-	speed="$(curl -s -m 20 "$url/DOWNTEST" -w "%{speed_download}" -o /dev/null |
+	speed="$(curl -Ls -m 20 "$url/DOWNTEST" -w "%{speed_download}" -o /dev/null |
 		sed -e 's:,:.:' -e 's:[\.,]...$::' )"
 
 	# compare