Add missing speech mark to test

qt/python/mantidqt/widgets/codeeditor/test/test_completion.py

@@ -49,7 +49,7 @@ class CodeCompletionTest(unittest.TestCase):
                                            "np\.asarray\(a, \[dtype\], .*\)")
 
     def test_call_tips_generated_if_syntax_errors_in_script(self):
-        self._run_check_call_tip_generated("from mantid.simpleapi import *\n print 'Hello', 'World", "Rebin")
+        self._run_check_call_tip_generated("from mantid.simpleapi import *\n print 'Hello', 'World'", "Rebin")
 
     def test_pyplot_call_tips_generated_if_imported_in_script(self):
         self._run_check_call_tip_generated("import matplotlib.pyplot as plt\n# My code",