This PR corrects misspellings identified by the check-spelling action.
The misspellings have been reported at jsoref@b6ba3e2#commitcomment-48946465
The action reports that the changes in this PR would make it happy: jsoref@602417c
Closes GH-6822.
It should be noted that we still throw the usual fopen warnings,
but the final fatal error becomes an Error exception. Combine
with @ to suppress FS warnings.
Closes GH-5641.
