[Libreoffice] [review] load of ftp-hosted documents fails

[Caolán McNamara]

i.e.
http://cgit.freedesktop.org/libreoffice/core/commit/?id=3ae98a0ca5329a0205728a46b4e5dd0d4b46a9f3
proposing for 3-4

old code will basically not distinguish between eof and error, and throw
an exception on all short reads.

probably fixes https://bugs.freedesktop.org/show_bug.cgi?id=34880 and
probably https://bugs.freedesktop.org/show_bug.cgi?id=39376 as well.

C.