Add additional source of Win32 GNU utilities.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19991 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/GettingStartedVS.html b/docs/GettingStartedVS.html
index 9e0c390..d6376cf 100644
--- a/docs/GettingStartedVS.html
+++ b/docs/GettingStartedVS.html
@@ -170,11 +170,13 @@
 
   <p>You will also need several open source packages:  bison, flex, and sed.
   These must be installed in <tt>llvm/win32/tools</tt>.  These can be found at
-  <a href="http://gnuwin32.sourceforge.net/">http://gnuwin32.sourceforge.net/
-  </a>.  Bison prefers that m4 be in the path.  You must add it to the Visual
-  Studio configuration under the menu Options -&gt; Projects -&gt; VC++
-  Directories.  Alternatively, you can set the environment variable <tt>M4</tt>
-  to point to <tt>m4</tt> executable.</p>
+  <a href="http://gnuwin32.sourceforge.net">http://gnuwin32.sourceforge.net</a>
+  or
+  <a href="http://unxutils.sourceforge.net">http://unxutils.sourceforge.net</a>.
+  Bison prefers that m4 be in the path.  You must add it to the Visual Studio
+  configuration under the menu Options -&gt; Projects -&gt; VC++ Directories.
+  Alternatively, you can set the environment variable <tt>M4</tt> to point to
+  <tt>m4</tt> executable.</p>
 
 </div>