Fix setting router hostname from the commandline

BUG=None
TEST=Passing the router hostname from the commandline now works as
expected.

Change-Id: I804afd313ddbfafca092a9af8e735fe50cc5cd79
Reviewed-on: https://chromium-review.googlesource.com/206306
Tested-by: Christopher Wiley <wiley@chromium.org>
Reviewed-by: Peter Qiu <zqiu@chromium.org>
Commit-Queue: Christopher Wiley <wiley@chromium.org>
1 file changed