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() {

makechrootpkg.in

@@ -213,12 +213,12 @@ if ! grep -q 'SRCDEST="/srcdest"' "$copydir/etc/makepkg.conf"; then
 	echo 'SRCDEST="/srcdest"' >> "$copydir/etc/makepkg.conf"
 fi
 
-if [[ -n $MAKEFLAGS ]]; then 
+if [[ -n $MAKEFLAGS ]]; then
 	sed -i '/^MAKEFLAGS=/d' "$copydir/etc/makepkg.conf"
 	echo "MAKEFLAGS='${MAKEFLAGS}'" >> "$copydir/etc/makepkg.conf"
 fi
 
-if [[ -n $PACKAGER ]]; then 
+if [[ -n $PACKAGER ]]; then
 	sed -i '/^PACKAGER=/d' "$copydir/etc/makepkg.conf"
 	echo "PACKAGER='${PACKAGER}'" >> "$copydir/etc/makepkg.conf"
 fi

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}"