While documenting a project that interacts with headers across different file formats, I noticed that RestructuredText comments rendered differently from the others:

For clarity: the difference between RestructuredText comments and other lexers' comments is that all other comments are styled as blue text and italicized, but RestructuredText uses green text and is un-italicized.

The root cause is that RestructuredText comments are given the token type Comment.Preproc, which is styled uniquely by most styles that I reviewed in Pygments.

This PR modifies the token type for RST comments to Comment. This results in rendering that matches my expectations:

Please let me know if anything is amiss here! As always, thanks for your work on Pygments!