Make the references to features in the help more consistent. (Sylvain Hitier)
diff --git a/runtime/doc/fold.txt b/runtime/doc/fold.txt
index a4a98a1..95f1d8a 100644
--- a/runtime/doc/fold.txt
+++ b/runtime/doc/fold.txt
@@ -15,7 +15,7 @@
4. Behavior of folds |fold-behavior|
{Vi has no Folding}
-{not available when compiled without the +folding feature}
+{not available when compiled without the |+folding| feature}
==============================================================================
1. Fold methods *fold-methods*