Configure: Discard errors when testing for less -R

When we try replacing 'less' with 'less -R', it's possible
that less will output errors if the option is not supported;
this happens, for example, in busybox's less.

1 files changed, 1 insertions, 1 deletions

diff --git a/Configure b/Configure
index a267266e03..8d802fdc65 100755
--- a/Configure
+++ b/Configure
@@ -2521,7 +2521,7 @@ egrep)
 esac
 case "$less" in
 '')	;;
-*)	if $less -R </dev/null >/dev/null; then
+*)	if $less -R </dev/null >/dev/null 2>&1; then
 	       echo "Substituting less -R for less."
 	       less="$less -R"
 	       _less=$less