docs: Add versionadded for run_once

pull/8850/head
Michal Gasek 11 years ago
parent 4e3095877f
commit 11d5656fde

@ -135,6 +135,8 @@ will need to ask for a passphrase.
Run Once
````````
.. versionadded:: 1.7
In some cases there may be a need to only run a task one time and only on one host. This can be achieved
by configuring "run_once" on a task::

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