Index: subversion/tests/clients/cmdline/README
===================================================================
--- subversion/tests/clients/cmdline/README	(revision 13734)
+++ subversion/tests/clients/cmdline/README	(working copy)
@@ -14,6 +14,9 @@
 
 These tests require Python 2.0 or later.
 
+  [ Please make sure that the environment variable POSIXLY_CORRECT,
+    is unset before executing the tests. ]
+
   [ For more general information on Subversion's testing system,
     please read the README in subversion/tests/. ]