Do not warn twice (and incorrectly so) about the same issue in do_extract.
Do not warn twice (and incorrectly so) about the same issue in do_extract.

en90/pkg,skoef/pkg,junovitch/pkg,junovitch/pkg,Open343/pkg,khorben/pkg,en90/pkg,khorben/pkg,khorben/pkg,Open343/pkg,skoef/pkg