Tweaked the testurl diff output text.

 - Legacy-Id: 6534

Author: levkowetz

ietf/utils/test_utils.py

@@ -234,11 +234,11 @@ def doDiff(self, tuple, response):
         diff_list = list(unified_diff(list0, list1, master or refurl, url, "", "", 0, lineterm=""))
         if len(diff_list):
             if len(diff_list) > 10:
-                print "The diff is too long to show in its entirety.  Here are the first 10 lines:\n"
+                print "\n    Differences found.  The list is too long to show in its entirety.\n    Here are the first 10 lines:\n"
                 print "\n".join(diff_list[:16])
                 print "..."
             else:
-                print "    Differences found:"
+                print "\n    Differences found:"
                 print "\n".join(unified_diff(list0, list1, master or refurl, url, "", "", 0, lineterm=""))
             return False