[osg-submissions] minor improvements to tiff plugin

[Robert Osfield]

Thanks Mike, changes merged and submitted to SVN.

On Jan 27, 2008 5:45 AM, Mike Weiblen <mew at mew.cx> wrote:
> 1) best practices suggest that values passed by-reference should be
> initialized.
> 2) explanatory comments are handy when available as notify() messages.
> cheers
> -- mew
>
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