Odd display for GHC's help page

[typesanitizer]

Bug report

• Version: 3b94399

• Issue type

  • Unexpected crash
    • Error message: [description here]
  • Improper rendering
    • Present with wide terminals (e.g. full screen-width)
    • Present with narrow terminals (e.g. half screen-width)
    • Present with very narrow terminals (e.g. quarter screen-width)
  • Something else: [description here]

• Test cases for reproduction (1 or more):

Run ozil ghc

• Screenshots (0 or more):