[VM] Allocate a bit less in digits_from_uint
[VM] Allocate a bit less in digits_from_uint

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