New comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/28954#issuecomment-783757163

Comment:
`--disable-stripping` is enough. That echo come from their `configure` https://github.com/FFmpeg/FFmpeg/blob/8d5bd5b8df89543f75eadd36f5c1755e4d6d51d4/configure#L7420.