Allow prec==0.
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@ -11,7 +11,7 @@ encodefmt(Fmt *f)
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uchar *b;
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char obuf[64]; // rsc optimization
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if(!(f->flags&FmtPrec) || f->prec < 1)
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if(!(f->flags&FmtPrec) || f->prec < 0)
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goto error;
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b = va_arg(f->args, uchar*);
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