Ian Wienand 3a9df1dab7 Check for nova-compute before running kill
Unconditionally running this can lead to confusing failure output from
kill as the pgrep matches nothing when nova-compute isn't yet running.

Change-Id: I37cb84fe8e0b393f49b8907af16a3e44f82c46a6
2015-07-01 06:18:47 +10:00
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