download_prerequisites: Use http instead of ftp for downloading.

2019-11-13  Janne Blomqvist  <jb@gcc.gnu.org>

        * download_prerequisites: Use http instead of ftp for downloading.

From-SVN: r278151

contrib/ChangeLog

+2019-11-13  Janne Blomqvist  <jb@gcc.gnu.org>
+
+	* download_prerequisites: Use http instead of ftp for downloading.
+
 2019-11-08  Martin Liska  <mliska@suse.cz>
 
 	* mklog: The script fails for patches that contain:

contrib/download_prerequisites

@@ -32,7 +32,7 @@ mpfr='mpfr-3.1.4.tar.bz2'
 mpc='mpc-1.0.3.tar.gz'
 isl='isl-0.18.tar.bz2'
 
-base_url='ftp://gcc.gnu.org/pub/gcc/infrastructure/'
+base_url='http://gcc.gnu.org/pub/gcc/infrastructure/'
 
 echo_archives() {
     echo "${gmp}"
@@ -58,7 +58,7 @@ esac
 if type wget > /dev/null ; then
   fetch='wget'
 else
-  fetch='curl -LO -u anonymous:'
+  fetch='curl -LO'
 fi
 chksum_extension='sha512'
 directory='.'