Emanuele Aina authored Sep 09, 2019 and Denis Pynkin committed Sep 10, 2019

Work around issues with the APT downloader corrupting files and
causing "Hash Sum Mismatch" errors.

A typical occurence is like:

    Get:97 https://repositories.apertis.org/apertis v2019pre/target amd64 libsystemd-dev amd64 240-5co3bb1 [317 kB]
    Err:97 https://repositories.apertis.org/apertis v2019pre/target amd64 libsystemd-dev amd64 240-5co3bb1
      Hash Sum mismatch
      Hashes of expected file:
       - SHA256:39654a35430ef132537880d67cd906bc958e1282e5e2d267e0d9ea96198c3649
       - SHA1:3d358b67b624162c4737a619de078cb8ae6091f6 [weak]
       - MD5Sum:c9da96eacf456df58bd564ab587a7a22 [weak]
       - Filesize:317116 [weak]
      Hashes of received file:
       - SHA256:caf4eacc492e6e67651c6d4ace49ee2800c3166e8d630cddd35b87c94042f655
       - SHA1:9690ac45a5282cc04fcbfc6fc3d2ac2e4c6fa375 [weak]
       - MD5Sum:33dcb5800d6e0c3c4d86f0e37c3d134e [weak]
       - Filesize:317116 [weak]
      Last modification reported: Tue, 21 May 2019 14:59:2...