Add __all__ to Reference Manual index.

Closes SF 643227.

diff --git a/Doc/ref/ref6.tex b/Doc/ref/ref6.tex
index b9a1c683ca906c7bdc254fe1283a0d417bc7e0c6..e6b3246e25c5d62103f7fe0986c76db7b96cb440 100644 (file)
--- a/Doc/ref/ref6.tex
+++ b/Doc/ref/ref6.tex
@@ -703,6 +703,7 @@ considered public and are required to exist.  If \code{__all__} is not
 defined, the set of public names includes all names found in the
 module's namespace which do not begin with an underscore character
 (\character{_}).
+\index{__all__}
 
 The \keyword{from} form with \samp{*} may only occur in a module
 scope.  If the wild card form of import --- \samp{import *} --- is