test: skip --title check on IBM i

Similar to SmartOS IBM i does not return the process.title PR-URL: #53952Fixes: #53852 Reviewed-By: Richard Lau <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: James M Snell <[email protected]>

Author: abmusse

test/fixtures/spawn-worker-with-copied-env.js

@@ -2,7 +2,7 @@
 
 // This test is meant to be spawned with NODE_OPTIONS=--title=foo
 constassert=require('assert');
-if(process.platform!=='sunos'){// --title is unsupported on SmartOS.
+if(process.platform!=='sunos'&&process.platform!=='os400'){// --title is unsupported on SmartOS and IBM i.
 assert.strictEqual(process.title,'foo');
 }