fix various typos, mainly in comments, but also log messages, docs, game text.

Fix all remaining typos, mainly in comments but also in few definitions and log messages, reported by me in PR kern/54889.
Also fixed some additional typos in comments, found on review of same files

Fix all remaining typos, mainly in comments but also in few definitions and log messages, reported by me in PR kern/54889.
Also fixed some additional typos in comments, found on review of same files or typos.

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s/transfered/transferred/

merge ktrace-lwp.

nuke trailing whitespace

DMA, not dma nor Dma.

RCSID Police.

Commit this, though it really does need work.