makepkg: avoid expansion of var in arithmetic context

This bombs out when "$trusted" expands to the empty string. We're
better off passing the var by name and letting bash default to "0" when
the var is empty

Fixes: https://bugs.archlinux.org/task/43269

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

1 files changed, 1 insertions, 1 deletions

diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index 18b2822c..1cd8756d 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -1498,7 +1498,7 @@ check_pgpsigs() {
 			esac
 			errors=1
 		else
-			if (( ${#validpgpkeys[@]} == 0 && ! $trusted )); then
+			if (( ${#validpgpkeys[@]} == 0 && !trusted )); then
 				printf "%s ($(gettext "the public key %s is not trusted"))" $(gettext "FAILED") "$fingerprint" >&2
 				errors=1
 			elif (( ${#validpgpkeys[@]} > 0 )) && ! in_array "$fingerprint" "${validpgpkeys[@]}"; then