Update pylintrc to work with later versions of pylint

pylintrc

@@ -12,7 +12,7 @@
 # So instead, we have this horrible hack where we insert a new
 # function into the linter which will print out the modules
 # being processed.
-init-hook=exec("_x=PyLinter.set_current_module\ndef _new_set_module(self, module, file=None, oldfunc=_x):\n  print('Checking %s%s' % (module, ' ('+file+')' if file else ''))\n  return oldfunc(self, module, file)\n\nPyLinter.set_current_module = _new_set_module")
+init-hook=exec("_x=PyLinter.set_current_module\ndef _new_set_module(self, module, file=None, oldfunc=_x):\n  print('Checking {}{}'.format(module, ' ('+file+')' if file else ''))\n  return oldfunc(self, module, file)\n\nPyLinter.set_current_module = _new_set_module")
 
 # Profiled execution.
 profile=no