typo

Doc/lib/libcsv.tex

@@ -239,7 +239,7 @@ A one-character string used to separate fields.  It defaults to \code{','}.
 
 \begin{memberdesc}[Dialect]{doublequote}
 Controls how instances of \var{quotechar} appearing inside a field should be
-themselves be quoted.  When \constant{True}, the character is doubledd.
+themselves be quoted.  When \constant{True}, the character is doubled.
 When \constant{False}, the \var{escapechar} must be a one-character string
 which is used as a prefix to the \var{quotechar}.  It defaults to
 \constant{True}.