As a drive-by, we fix the ffmpeg-installation-utils.sh script to install
FFmpeg source code into the expected target directory, instead of it
relying haphazardly on the name of the downloaded archive.
Same fix for install-ffmpeg.ps1.
Task-number: QTBUG-148761
Change-Id: Id765e01fbd402ee494a6a3ffec773d1dccc07c87
Reviewed-by: Tim Blechmann <tim.blechmann@qt.io>
(cherry picked from commit 7fdc3c2e63)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Nils Petter Skålerud
a870cffea0