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:

ggplot2/R/coord-polar.R

Line 23 in 4fbc857

#' #' # A pie chart = stacked bar chart + polar coordinates