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

11295 lp: NULL pointer errors
Reviewed by: C Fraire <cfraire@me.com>
Approved by: Garrett D'Amore <garrett@damore.org>

6264775 lpadmin expects to write into string constants
6271970 gcc and cmd/lp don't get along

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