Remove duplication.
diff --git a/Doc/distutils/apiref.rst b/Doc/distutils/apiref.rst
index e3d41cc..b3def22 100644
--- a/Doc/distutils/apiref.rst
+++ b/Doc/distutils/apiref.rst
@@ -1745,7 +1745,7 @@
Set final values for all the options that this command supports. This is
always called as late as possible, ie. after any option assignments from the
command-line or from other commands have been done. Thus, this is the place
- to to code option dependencies: if *foo* depends on *bar*, then it is safe to
+ to code option dependencies: if *foo* depends on *bar*, then it is safe to
set *foo* from *bar* as long as *foo* still has the same value it was
assigned in :meth:`initialize_options`.