Fix tidy

Author: scottmcm

src/libcore/tests/ops.rs

@@ -91,4 +91,4 @@ fn test_range_is_empty() {
     assert!( (EPSILON ..= NAN).is_empty());
     assert!( (NAN ..= EPSILON).is_empty());
     assert!( (NAN ..= NAN).is_empty());
-}
+}