Fix typo in JSModule spec
Fix typo in JSModule spec

Eagle-eyed @trotzig spotted a typo here. Although this doesn't really
matter since it doesn't affect the test, I'm fixing it anyway.

trotzig/import-js,Galooshi/import-js,lencioni/import-js,trotzig/import-js,trotzig/import-js,lencioni/import-js,lencioni/import-js