transforms.{RandomAdjustSharpness,RandomPosterize}: `p` parameter

[georggrab]

📚 The doc issue

The docstring of parameter p for RandomAdjustSharpness says:

p (float) – probability of the image being color inverted. Default value is 0.5

Suggest a potential alternative/fix

p (float) – probability of the image being sharpened. Default value is 0.5

Also for RandomPosterize, RandomSolarize, but RandomSolarize actually performs a color inversion so it's OK there.

[datumbox]

Thanks this is probably due to copy-pasting the docstring. Would you be interested in sending a PR to fix it?

[georggrab]

Sure, #5609