Added description about unittest2.


git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@110400 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/README-TestSuite b/test/README-TestSuite
index d8564fb..f83fbb4 100644
--- a/test/README-TestSuite
+++ b/test/README-TestSuite
@@ -45,6 +45,14 @@
   C/C++/ObjC source files; they were created to house the Python test case which
   does not involve lldb reading in an executable file at all.
 
+o unittest2
+
+  Many new features were added to unittest in Python 2.7, including test
+  discovery. unittest2 allows you to use these features with earlier versions of
+  Python.
+
+  It currently has unittest2 0.5.1 from http://pypi.python.org/pypi/unittest2.
+
 o dotest.pl
 
   In case you wonder, there is also a 'dotest.pl' perl script file.  It was