add versionadded for getcheckinterval

nnorwitz · nnorwitz · commit 7cb229df180e · 2003-07-07T14:11:53.000Z
diff --git a/Doc/lib/libsys.tex b/Doc/lib/libsys.tex
@@ -200,6 +200,7 @@ \section{\module{sys} ---
 \begin{funcdesc}{getcheckinterval}{}
   Return the interpreter's ``check interval'';
   see \function{setcheckinterval()}.
+  \versionadded{2.3}
 \end{funcdesc}
 
 \begin{funcdesc}{getdefaultencoding}{}
