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--- fputs.3.orig Tue May 20 15:22:42 2003 +++ fputs.3 Thu Jul 31 17:34:11 2003 @@ -109,3 +109,13 @@ .Fn puts conform to .St -isoC . +While not mentioned in the standard, both +.Fn fputs +and +.Fn puts +print +.Ql (null) +if +.Fa str +is +.Dv NULL .