Add note for Mac OS X developers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27175 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/TestingGuide.html b/docs/TestingGuide.html
index 2f88ada..ca21ade 100644
--- a/docs/TestingGuide.html
+++ b/docs/TestingGuide.html
@@ -88,6 +88,9 @@
 filenames themselves on the <tt>configure</tt> line.</li>
 </ul></dd>
 </dl>
+
+<p>Mac OS X developers can simplify installation of Expect and tcl by using
+fink.  <tt>fink install expect</tt> will install both.</p>
 </div>
 
 <!--=========================================================================-->