Fixing #4906 (regression in printing an error message).
Fixing #4906 (regression in printing an error message).

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