Use more obvious non-ascii characters in unicode test

IPython/lib/tests/test_security.py

@@ -22,5 +22,5 b' def test_bad():'
 
 def test_passwd_check_unicode():
     # GH issue #4524
-    phash = u'sha1:9dc18846ca26:6bb62badc41fde529c258a8a7fbe259a91313df8'
-    assert passwd_check(phash, u'mypassword³')
  No newline at end of file
+    phash = u'sha1:23862bc21dd3:7a415a95ae4580582e314072143d9c382c491e4f'
+    assert passwd_check(phash, u"łe¶ŧ←↓→")
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