Index: subversion/tests/cmdline/svntest/actions.py
===================================================================
--- subversion/tests/cmdline/svntest/actions.py (revision 20095)
+++ subversion/tests/cmdline/svntest/actions.py (working copy)
@@ -804,7 +804,7 @@
   token_re = re.compile (".*?Lock Token: opaquelocktoken:.*?", re.DOTALL)
   author_re = re.compile (".*?Lock Owner: %s\n.*?" % username, re.DOTALL)
   created_re = re.compile (".*?Lock Created:.*?", re.DOTALL)
-  comment_re = re.compile (".*?%s\n.*?" % comment, re.DOTALL)
+  comment_re = re.compile (".*?%s\n.*?" % re.escape(comment), re.DOTALL)
   # join all output lines into one
   output = "".join(output)
   # Fail even if one regex does not match