[Dune] Flyspray task #17 - left/rightmultiply should return void

[dune at hal.iwr.uni-heidelberg.de]

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Notice from Dune 

A new Flyspray task has been opened in this category - "ISTL"
You are receiving this because you are listed as the category owner.

Task summary: left/rightmultiply should return void 

You can find more information about this bug at the Flyspray page:
http://inferno.iwr.uni-heidelberg.de/flyspray/index.php?do=details&id=17