15843 automation can fix many trailing whitespace cstyle nits
Reviewed by: Andy Fiddaman <illumos@fiddaman.net>
Approved by: Dan McDonald <danmcd@mnx.io>

11291 bnu: NULL pointer errors
Reviewed by: Andrew Stormont <andyjstormont@gmail.com>
Approved by: Garrett D'Amore <garrett@damore.org>

6268925 cmd/bnu and gcc don't get along

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