Send 'camcontrol help' usage output to stdout instead of stderr, so it can be viewed more easily with a pager.
Send 'camcontrol help' usage output to stdout instead of stderr, so it
can be viewed more easily with a pager.

Regular (i.e. short) usage output is still sent to stderr.

PR:		bin/12358
Submitted by:	Christian Weisgerber <naddy@mips.rhein-neckar.de>

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