scrub even without sync

snapraid-runner.py

@@ -231,8 +231,7 @@ def run():
     if (diff_results["remove"] + diff_results["add"] + diff_results["move"] +
             diff_results["update"] == 0):
         logging.info("No changes detected, no sync required")
-        finish(True)
-
+    else:
         logging.info("Running sync...")
         try:
             snapraid_command("sync")