Removed reference to ni module.
diff --git a/Doc/lib/libfuncs.tex b/Doc/lib/libfuncs.tex
index e914e80..f8d22bc 100644
--- a/Doc/lib/libfuncs.tex
+++ b/Doc/lib/libfuncs.tex
@@ -12,12 +12,11 @@
mainly exists so that you can replace it with another
function that has a compatible interface, in order to change the
semantics of the \keyword{import} statement. For examples of why and
-how you would do this, see the standard library modules \module{ni},
+how you would do this, see the standard library modules
\module{ihooks} and \module{rexec}. See also the built-in module
\module{imp}, which defines some useful operations out of which you can
build your own \function{__import__()} function.
\stindex{import}
-\refstmodindex{ni}
\refstmodindex{ihooks}
\refstmodindex{rexec}
\refbimodindex{imp}