It would be nice if gpk-update-icon provided in some way information on *which* package requested the restart hint. I know it's possible to find it out from the "review" window. Whether in its menu, or on on-icon tooltip is to the discussion.
commit fb14356713f4e3b84fa68ed8ae93389fc0e13103 Author: Richard Hughes <richard@hughsie.com> Date: Thu Jan 15 16:22:48 2009 +0000 bugfix: show the package that caused the restart required signal in the icon tooltip
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