Fixes incorrectly placed fileExists guard.
Fixes incorrectly placed fileExists guard.

kennethtruong/react-webapp,deanslamajr/trakta.co,sergiokopplin/react-universally,ueno-llc/starter-kit-universally,igorsvee/react-ssr,ctrlplusb/react-universally,pebie/react-universally-node-config,oyeanuj/react-universally,LorbusChris/react-universally,ueno-llc/starter-kit-universally,diondirza/react-universally,brettsnaidero/bsd