request-pull: really disable pager

ff06c74 (Improve request-pull to handle non-rebased branches, 2007-05-01)
attempted to disable pager when running subcommands in this script, but
with a wrong variable.  If GIT_PAGER is set, it takes precedence over
PAGER.

Noticed by Michal Marek.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-request-pull.sh

@@ -42,8 +42,8 @@ if [ -z "$branch" ]; then
 	status=1
 fi
 
-PAGER=
-export PAGER
+GIT_PAGER=
+export GIT_PAGER
 echo "The following changes since commit $baserev:"
 git shortlog --max-count=1 $baserev | sed -e 's/^\(.\)/  \1/'