chore: remove duplicate words in six comments

[mvanhorn]

Summary

All comment / doc-comment changes.

File	Line	Fix
src/uucore/src/lib/features/checksum/validate.rs	471	"must set it the the detected" → "must set it to the detected" (also adds the missing "to")
src/uucore/src/lib/features/uptime.rs	416	"logged in in a human-readable format" → "logged in, in a human-readable format"
src/uu/od/src/output_info.rs	115	"the width is width of the the type" → "the width is the width of the type"
src/uu/split/src/filenames.rs	113	"Determine if the the output file names" → "Determine if the output file names"
src/uu/tail/src/paths.rs	228	"if `path` is is a file type" → "if `path` is a file type"
src/uu/chcon/src/chcon.rs	527	"then is is assumed to be valid" → "then it is assumed to be valid"

[cakebaker]

Thanks for your PR!

[sylvestre]

fun :)

[github-actions]

GNU testsuite comparison:

Skip an intermittent issue tests/cut/bounded-memory (fails in this run but passes in the 'main' branch)
Skip an intermittent issue tests/tail/retry (fails in this run but passes in the 'main' branch)
Note: The gnu test tests/cp/link-heap is now being skipped but was previously passing.
Congrats! The gnu test tests/tail/tail-n0f is now passing!

[mvanhorn]

Appreciate you merging the duplicate-word cleanup across the six comments, @cakebaker.