Merge "Fix an issue in assert-max-image-size." am: d690ca5b

  size=$$(for i in $(1); do $(call get-file-size,$$i); echo +; done; echo 0); \

  total=$$(( $$( echo "$$size" ) )); \

  printname=$$(echo -n "$(1)" | tr " " +); \

  maxsize=$(2); \

  maxsize=$$(($(2))); \

  if [ "$$total" -gt "$$maxsize" ]; then \

    echo "error: $$printname too large ($$total > $$maxsize)"; \

    false; \