fix passenger redis connect
fix passenger redis connect

Change-Id: I57033b09969beaac8001c147dbdd22b59fea6bcd
Reviewed-on: https://gerrit.instructure.com/13603
Reviewed-by: Zach Wily <9de8c4480303b5335cd2a33eefe814615ba3612a@instructure.com>
Tested-by: Brian Palmer <3cb4e1df5ec4da2c7c4af7c52cec8cf340a55a10@instructure.com>

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