Documentation for `coord_polar()` and `coord_radial()` has exposed `roxygen2` syntax.

[jdonland]

For example, there's an exposed "#'" above the first example plot and a "\donttest{" below it.

[teunbrand]

Thanks for the report! Relevant line can be found here: https://github.com/tidyverse/ggplot2/blob/4fbc8575d80e54e1973ac58e979c2300aec21394/R/coord-polar.R#L23