fix bug in command line parsing (Milan)

thin_check.cc

@@ -90,5 +90,5 @@ int main(int argc, char **argv)
 		exit(1);
 	}
 
-	return check(argv[1], quiet);
+	return check(argv[optind], quiet);
 }

thin_repair.cc

@@ -75,5 +75,5 @@ int main(int argc, char **argv)
 		exit(1);
 	}
 
-	return check(argv[1]);
+	return check(argv[optind]);
 }