Changing rule for "*" in Operator_Properties so that, iterated, it does not print to ** which is a keyword.
Changing rule for "*" in Operator_Properties so that, iterated, it
does not print to ** which is a keyword.

william-lawvere/coq,SkySkimmer/coq,JasonGross/coq,ppedrot/coq,ppedrot/coq,silene/coq,silene/coq,ejgallego/coq,Matafou/coq,gares/coq,maximedenes/coq,mattam82/coq,silene/coq,Ptival/coq,gares/coq,coq/coq,mattam82/coq,mattam82/coq,Ptival/coq,coq/coq,JasonGross/coq,Zimmi48/coq,william-lawvere/coq,JasonGross/coq,JasonGross/coq,letouzey/coq-wip,Zimmi48/coq,william-lawvere/coq,ejgallego/coq,amintimany/coq,SkySkimmer/coq,maximedenes/coq,letouzey/coq-wip,ejgallego/coq,coq/coq,SkySkimmer/coq,ppedrot/coq,Lionel-Rieg/coq,ppedrot/coq,Lionel-Rieg/coq,gares/coq,maximedenes/coq,amintimany/coq,Lionel-Rieg/coq,gares/coq,maximedenes/coq,letouzey/coq-wip,maximedenes/coq,coq/coq,letouzey/coq-wip,amintimany/coq,ejgallego/coq,gares/coq,Ptival/coq,ppedrot/coq,Matafou/coq,letouzey/coq-wip,Matafou/coq,Zimmi48/coq,Zimmi48/coq,SkySkimmer/coq