MDBF-534: Coverity scan: fix client folder

```------------------------------
File: `mysqladmin`
```

------------------------------
- Coverity (PRINTF_ARGS):
https://scan5.scan.coverity.com/reports.htm#v58936/p10357/fileInstanceId=231728412&defectInstanceId=53073308&mergedDefectId=1520228&eventId=53073308-0

`mysql_upgrade` - extra argument to printf format specifiera

- Coverity (TAINTED_SCALAR) - FAlSE POSITIVE:
https://scan5.scan.coverity.com/reports.htm#v58936/p10357/fileInstanceId=231728412&defectInstanceId=53072897&mergedDefectId=1519349

client/mysql_upgrade.c

@@ -848,8 +848,7 @@ static int upgrade_already_done(int silent)
             "There is no need to run mysql_upgrade again for %s.",
             upgrade_from_version, version);
     if (!opt_check_upgrade)
-      verbose("You can use --force if you still want to run mysql_upgrade",
-              upgrade_from_version, version);
+      verbose("You can use --force if you still want to run mysql_upgrade");
   }
   return 0;
 }