Reproduction steps:
1) Create a directory with spaces in it
2) Run RunOSX.command command like this"
exec /path/to/RunOSX.command --nolegacy --path "/path/with/some\ spaces/Cache5.0/" &

--- You will get an error like this:

Unknown option: spaces/Cache5.0/
Usage: node main.js [--port serverPort] [--path pathToCache] [--legacypath pathToCache] [--size maximumSizeOfCache] [--nolegacy] [--verify|--fix]
--port: specify the server port, only apply to new cache server, default is 8126
--path: specify the path of the cache directory, only apply to new cache server, default is ./cache5.0
--legacypath: specify the path of the cache directory, only apply to legacy cache server, default is ./cache
--size: specify the maximum allowed size of the LRU cache for both servers. Files that have not been used recently will automatically be discarded when the cache size is exceeded
--nolegacy: do not start legacy cache server, otherwise legacy cache server will start on port 8125.
--verify: verify the Cache Server integrity, no fix.
--fix: fix the Cache Server integrity.