Remove extraneous dot in error message (bug #4832).
Remove extraneous dot in error message (bug #4832).

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