Relay Compiler: use strict CLI validation
Summary:
This will prevent calling Relay Compiler with unsupported arguments (`relay-compiler --unknown`). See:
Pull Request resolved:
@@ -144,6 +144,7 @@ const argv = yargs
// Apply externally loaded config through the yargs API so that we can leverage yargs' defaults and have them show up
// in the help banner.
.config(config)
+ .strict()
.help().argv;
// Start the application
