fix JSON syntax (#9899)

when i hit the command
`kubectl patch serviceaccount default -p '{\"imagePullSecrets\": [{\"name\": \"myregistrykey\"}]}'`
then i got this error
`Error from server (BadRequest): invalid character '\\' looking for beginning of object key string`

But i stripped all back slashes, and it worked.

If this issue is caused only in my specific environment, 
close this pull-request.

My environment is ...
- Docker for Mac: Version 18.06.0-ce-mac70 (26399), Kubernetes: v1.10.3
This commit is contained in:
Tomokatsu Iguchi 2018-09-25 13:26:39 +09:00 committed by k8s-ci-robot
parent c6a4252444
commit 79104cb55c

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