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<a href="https://github.com/wikimedia/cumin/commit/<a class=hub.com/wikimedia/cumin/commit/<a class="double-link" href="https://git"><a class=hub.com/wikimedia/cumin/commit/<a class="double-link" href="https://git"><a class=hub.com/wikimedia/cumin/commit/a5b7fdb656dce7ceccd159861a08b4b2df290514">a5b7fdb65<a href="https://github.com/wikimedia/cumin/commit/a5b7fdb656dce7ceccd159861a08b4b2df290514">&quot;&gt;&amp;lt;a href=&amp;quot;https://github.com/wikimedia/cumin/commit/&lt;/a&gt;&lt;a class=&quot;double-link&quot; href=&quot;https://github.com/wikimedia/cumin/commit/a5b7fdb656dce7ceccd159861a08b4b2df290514&quot;&gt;a5b7fdb65&lt;/a&gt;&lt;a href=&quot;https://github.com/wikimedia/cumin/commit/a5b7fdb656dce7ceccd159861a08b4b2df290514&quot;&gt;&amp;quot;&amp;gt;ClusterShell backend: fix execute() return code

* The return code of the execute() method was not respecting the parent
  class contract for its return code when there are no commands set or
  no hosts to target.
* Breaking API change: make the Target class raise an WorkerError
  exception on instantiation if there are no target hosts.
* Breaking API change: make the execute() method raise a WorkerError
  exception if there are no commands to execute.

Change-Id: I&amp;lt;/a&gt;&lt;a class=&quot;double-link&quot; href=&quot;https://github.com/wikimedia/cumin/commit/</a><a class="double-link" href="https://github.com/wikimedia/cumin/commit/<a class="double-link" href="https://github.com/wikimedia/cumin/commit/db59df41dac12d78803d560af3c22da9f1df4d1a">db59df41d</a>">db59df41d</a><a href="https://github.com/wikimedia/cumin/commit/a5b7fdb656dce7ceccd159861a08b4b2df290514">">db59df41d</a>

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