Added Lua interfae. (Luis Carvalho)
diff --git a/runtime/doc/vi_diff.txt b/runtime/doc/vi_diff.txt
index 0365a90..18566fc 100644
--- a/runtime/doc/vi_diff.txt
+++ b/runtime/doc/vi_diff.txt
@@ -411,7 +411,7 @@
etc., etc. See |eval|.
Debugging and profiling are supported. |debug-scripts| |profile|
If this is not enough, an interface is provided to |Python|, |Ruby|,
- |Tcl|, |Perl| and |MzScheme|.
+ |Tcl|, |Lua|, |Perl| and |MzScheme|.
Viminfo. |viminfo-file|
The command-line history, marks and registers can be stored in a file