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Helga Velroyen authored
This patch factors out the functions that deal with setting and modifying the DRBD usermode helper in cluster.py in order to make them more unittestable. The unit tests are provided as well. No functional changes otherwise. Signed-off-by: Helga Velroyen <helgav@google.com> Reviewed-by: Thomas Thrainer <thomasth@google.com>
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