fix example run for new usage

core/main_test.go

@@ -76,7 +76,7 @@ func ExampleRun() {
 	//    --admin-credentials-file FILE  optional, applies only in client mode when making remote API calls. If provided, FILE containing admin credentials will be used for logging in, allowing to avoid an additional login step. If `FILE` is missing, it will be ignored. Defaults to <RootDir>/apicredentials
 	//    --remote-node-url URL          optional, applies only in client mode when making remote API calls. If provided, URL will be used as the remote Chainlink API endpoint (default: "http://localhost:6688")
 	//    --insecure-skip-verify         optional, applies only in client mode when making remote API calls. If turned on, SSL certificate verification will be disabled. This is mostly useful for people who want to use Chainlink with a self-signed TLS certificate
-	//    --config value, -c value       TOML configuration file(s) via flag, or raw TOML via env var. If used, legacy env vars must not be set. Multiple files can be used (-c configA.toml -c configB.toml), and they are applied in order with duplicated fields overriding any earlier values. [$CL_CONFIG]
+	//    --config value, -c value       TOML configuration file(s) via flag, or raw TOML via env var. If used, legacy env vars must not be set. Multiple files can be used (-c configA.toml -c configB.toml), and they are applied in order with duplicated fields overriding any earlier values. If the env var is specified, it is always processed last with the effect of being the final override. [$CL_CONFIG]
 	//    --secrets value, -s value      TOML configuration file for secrets. Must be set if and only if config is set.
 	//    --help, -h                     show help
 	//    --version, -v                  print the version