Bug #1685704: use -m switch in timeit docs.
(backport from rev. 54524)
diff --git a/Doc/lib/libtimeit.tex b/Doc/lib/libtimeit.tex
index 1c4e05b..0be156c 100644
--- a/Doc/lib/libtimeit.tex
+++ b/Doc/lib/libtimeit.tex
@@ -102,7 +102,7 @@
When called as a program from the command line, the following form is used:
\begin{verbatim}
-python timeit.py [-n N] [-r N] [-s S] [-t] [-c] [-h] [statement ...]
+python -m timeit [-n N] [-r N] [-s S] [-t] [-c] [-h] [statement ...]
\end{verbatim}
where the following options are understood: