Fix a typo
Fix a typo

As per https://github.com/coq/coq/pull/968#discussion_r133238157 and
https://github.com/coq/coq/pull/969#discussion_r133241472

ppedrot/coq,SkySkimmer/coq,maximedenes/coq,maximedenes/coq,Matafou/coq,ppedrot/coq,Matafou/coq,ppedrot/coq,silene/coq,coq/coq,Matafou/coq,ppedrot/coq,gares/coq,ppedrot/coq,ejgallego/coq,silene/coq,JasonGross/coq,SkySkimmer/coq,gares/coq,JasonGross/coq,gares/coq,SkySkimmer/coq,Zimmi48/coq,ejgallego/coq,Zimmi48/coq,silene/coq,ejgallego/coq,letouzey/coq-wip,letouzey/coq-wip,Zimmi48/coq,gares/coq,maximedenes/coq,maximedenes/coq,maximedenes/coq,coq/coq,coq/coq,coq/coq,letouzey/coq-wip,letouzey/coq-wip,letouzey/coq-wip,SkySkimmer/coq,JasonGross/coq,JasonGross/coq,ejgallego/coq,gares/coq,Zimmi48/coq