[FFmpeg-devel] [PATCH v17 4/5] libavformat: Remove MAX_PATH limit and use UTF-8 version of getenv()

[nil-admirari at mailo.com]

> FWIW - I wasn't entirely sure we can conclude that we always pass through 
> a case that initializes the err variable here, so just to be sure, I 
> locally amended this patch to initialize the err variable to 0 too.

Fixed: https://ffmpeg.org/pipermail/ffmpeg-devel/2022-June/297806.html