wsk cli is not retaining .wskprops file formatting after setting properties

@GabrielNicolasAvellaneda commented on [Tue Sep 26 2017](https://github.com/apache/incubator-openwhisk/issues/2806)

```bash
developer@ubuntu:~/openwhisk$ cat ~/.wskprops
# Bellow is an empty line and then we set the namespace

NAMESPACE=my-namespace # This is an inline comment

# This API host is for the dev environment
APIHOST=http://dev.openwhisk.local:10001

developer@ubuntu:~/openwhisk$ bin/wsk property set --apihost http://test.openwhisk.local:10001
ok: whisk API host set to http://test.openwhisk.local:10001

developer@ubuntu:~/openwhisk$ cat ~/.wskprops
APIHOST=http://test.openwhisk.local:10001
NAMESPACE=my-namespace # This is an inline comment
```

@rabbah If this makes sense please assign this to me. Thanks!

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@GabrielNicolasAvellaneda commented on [Tue Sep 26 2017](https://github.com/apache/incubator-openwhisk/issues/2806#issuecomment-332217370)

@rabbah Is it safe to do changes in this project instead of the incubator-openwhisk-cli repository? Are you syncing repos?

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@rabbah commented on [Tue Sep 26 2017](https://github.com/apache/incubator-openwhisk/issues/2806#issuecomment-332218729)

go for it - indeed they're kept in sync until the cord is cut.