return to original dir after finding files

xorriso/gen_input.sh.in

@@ -5,10 +5,11 @@ echo "-outdev $(pwd)/build/deploy.iso"
 echo "-boot_image any replay"
 echo "-joliet on"
 echo "-compliance joliet_long_names"
-cd container
+pushd container
 for file in $(find ${IMAGE_NAME}-${IMAGE_TAG})
 do
     echo "-map $(pwd)/${file} ${file}"
     echo "-chmod 0444 ${file}"
 done
+popd
 echo "-end"