Accept option -compat 8.5. (Fix bug #4393)
Accept option -compat 8.5. (Fix bug #4393)

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