Fix return code handling

Stop trap_exit from forcing a 0 exit code. This fixes makechrootpkg,
which used to always return success, even if the build failed.

Signed-off-by: Pierre Schmitz <pierre@archlinux.de>

lib/common.sh

@@ -78,7 +78,7 @@ trap_abort() {
 
 trap_exit() {
 	trap - EXIT INT QUIT TERM HUP
-	cleanup 0
+	cleanup
 }
 
 die() {

mkarchroot.in

@@ -160,7 +160,8 @@ copy_hostconf () {
 }
 
 trap_chroot_umount () {
-	trap 'trap_exit' EXIT INT QUIT TERM HUP
+	trap 'trap_abort' INT QUIT TERM HUP
+	trap 'trap_exit' EXIT
 
 	for cache_dir in ${cache_dirs[@]}; do
 		umount "${working_dir}/${cache_dir}"