correct heading underline for new "Cross-compiling on Windows" section

diff --git a/Doc/distutils/builtdist.rst b/Doc/distutils/builtdist.rst
index f009bbb9288d2062ebd6a10e24593f64420a5be0..cd2bd817b423a2005d1d8c8f72b49f576ec2c764 100644 (file)
--- a/Doc/distutils/builtdist.rst
+++ b/Doc/distutils/builtdist.rst
@@ -332,7 +332,7 @@ The installer file will be written to the "distribution directory" --- normally
 .. _cross-compile-windows:
 
 Cross-compiling on Windows
-=====================
+==========================
 
 Starting with Python 2.6, distutils is capable of cross-compiling between 
 Windows platforms.  In practice, this means that with the correct tools