Typo on eq at Filters Docmentation

[nicol]

Summary of the bug: Eq filter at contrast default is not 0, but 1.
How to reproduce:
Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker.

Visit: https://ffmpeg.org/ffmpeg-filters.html#eq

contrast
Set the contrast expression. The value must be a float value in range -2.0 to 2.0. The default value is "0".

contrast default is not 0, but 1.

Ref: ​https://github.com/FFmpeg/FFmpeg/blob/master/libavfilter/vf_eq.c#L352
352 static const AVOption eq_options[] = {
353 { "contrast", "set the contrast adjustment, negative values give a negative image",
354 OFFSET(contrast_expr), AV_OPT_TYPE_STRING, {.str = "1.0"}, CHAR_MIN, CHAR_MAX, FLAGS },

[llogan]

Fixed in b798593ca52616773702685fbb4dcb2aae46eaac. Thanks for the report.