documented SetMaxLength(0)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11393 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/text.tex

@@ -527,6 +527,10 @@ This function sets the maximum number of characters the user can enter into the
 control. In other words, it allows to limit the text value length to {\it len}
 not counting the terminating {\tt NUL} character.
 
+If {\it len} is $0$, the previously set max length limi, if any, is discarded
+and the user may enter as much text as the underlying native text control
+widget supports (typically at least 32Kb).
+
 If the user tries to enter more characters into the text control when it
 already is filled up to the maximal length, a 
 {\tt wxEVT\_COMMAND\_TEXT\_MAXLEN} event is sent to notify the program about it