SF patch 1547796 by Georg Brandl -- set literals.
diff --git a/Doc/lib/libdis.tex b/Doc/lib/libdis.tex
index fc72322..5c53490 100644
--- a/Doc/lib/libdis.tex
+++ b/Doc/lib/libdis.tex
@@ -501,6 +501,10 @@
Works as \code{BUILD_TUPLE}, but creates a list.
\end{opcodedesc}
+\begin{opcodedesc}{BUILD_SET}{count}
+Works as \code{BUILD_TUPLE}, but creates a set.
+\end{opcodedesc}
+
\begin{opcodedesc}{BUILD_MAP}{zero}
Pushes a new empty dictionary object onto the stack. The argument is
ignored and set to zero by the compiler.