Added comment for dataviewer bugzilla 832

git-svn-id: https://redoubt.ligo-wa.caltech.edu/svn/advLigoRTS/trunk@4190 6dcd42c9-f523-4c6d-aada-af552506706e

NEWS

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 Changes for 3.x
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+- Bug Fix (832): Dataviewer -r <restorefile> command line option fixed.
 - Bug Fix (999): start script does not error out if real-time model killed 
 - Bug Fix (1000): ccodeio.h now uses environment variables in file paths
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