invalid error message when device not found

[vdelendik]

when device not found via filter/udid we have to say about it instead of below errors:

dssautomation@automation-android-03:~$ zebrunner-farm start R5...VR
 creating...
/usr/local/bin/zebrunner-farm: line 84: [: too many arguments
/usr/local/bin/zebrunner-farm: line 142: [: too many arguments
ERROR! Unsupported platform: android
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device-- starting...
Error response from daemon: No such container: device--
Error: failed to start containers: device--
Error response from daemon: No such container: device---appium
Error: failed to start containers: device---appium
Error response from daemon: No such container: device---uploader
Error: failed to start containers: device---uploader

[vdelendik]

fixed for zebrunner-farm start/stop/down <udid> command where udid is not valid, for example:

zebrunner-farm down 123

      WARNING! Unable to find device by "123"!

P.S. for restart command it is ok to display warning twice as as we do stop and then start

[dhreben]

Verified.