.Sh "SEE ALSO" to: .Sh SEE ALSO The doc macros check for the latter (actually just for 'SEE' as the first argument to .Sh) to set the section header SEE ALSO flag, which modifies some behaviour (e.g. references done with .Rs/.Re).
.Dd is supposed to be invoked like: .Dd month day, year e.g. ".Dd January 25, 1989", rather than: .Dd "month day, year" which is what these pages did.