Update test/parallel/test-os.js

Co-authored-by: Darshan Sen <[email protected]>

Author: waelsy123

test/parallel/test-os.js

@@ -85,11 +85,11 @@ const hostname = os.hostname();
 is.string(hostname);
 assert.ok(hostname.length > 0);
 
-const DUMMY_PRIORITY = 10
-os.setPriority(DUMMY_PRIORITY)
-const priority = os.getPriority()
-is.number(priority)
-assert.ok(priority === DUMMY_PRIORITY)
+const DUMMY_PRIORITY = 10;
+os.setPriority(DUMMY_PRIORITY);
+const priority = os.getPriority();
+is.number(priority);
+assert.strictEqual(priority, DUMMY_PRIORITY);
 
 // On IBMi, os.uptime() returns 'undefined'
 if (!common.isIBMi) {