makepkg: do not create hg working directory on checkout

Creating the working directory can waste a lot of space.
Fixes FS#31221.

Signed-off-by: Allan McRae <allan@archlinux.org>

scripts/makepkg.sh.in

@@ -477,7 +477,7 @@ download_hg() {
 
 	if [[ ! -d "$dir" ]]; then
 		msg2 "$(gettext "Cloning %s %s repo...")" "${repo}" "hg"
-		if ! hg clone "$url" "$dir"; then
+		if ! hg clone -U "$url" "$dir"; then
 			error "$(gettext "Failure while downloading %s %s repo")" "${repo}" "hg"
 			plain "$(gettext "Aborting...")"
 			exit 1
@@ -485,7 +485,7 @@ download_hg() {
 	elif (( ! HOLDVER )); then
 		msg2 "$(gettext "Updating %s %s repo...")" "${repo}" "hg"
 		cd_safe "$dir"
-		if ! hg pull -u; then
+		if ! hg pull; then
 			# only warn on failure to allow offline builds
 			warning "$(gettext "Failure while updating %s %s repo")" "${repo}" "hg"
 		fi