RdFilesKind:
| "rd-syntax"
| "rd-unknown-macro"
| "rd-structure"
| "rd-empty-section"
| "rd-encoding"
| "rd-markup"
| "rd-lost-braces"
| "rd-duplicate-name"
| "rd-duplicate-alias"
| "rd-missing-alias"
| "rd-package-alias"
| "rd-name-case"
| "rd-missing-link"
| "rd-undeclared-package"
| "rd-line-width"
| "rd-missing-description"
| "rd-undocumented-argument"
| "rd-boilerplate"
| "rd-missing-value"
| "rd-keyword"
| "rd-s3-method-name"
| "rd-bibentry"
| "rd-example-syntax"
| "rd-example-abbreviation"
| "rd-example-quit"
| "rd-example-setwd"
| "rd-example-file"
what is wrong with an Rd page or the manual, named after the part of
R CMD checkthat finds it