Make sure files end with exactly one new line and police this in presubmit.

test/mjsunit/global-load-from-eval-in-with.js

Index: test/mjsunit/global-load-from-eval-in-with.js
diff --git a/test/mjsunit/global-load-from-eval-in-with.js b/test/mjsunit/global-load-from-eval-in-with.js
index d733f6c8d4404434aff0299005dc0cf410e98e81..a41ad7ee00166ccc3ea85c46ee897fd4c305043c 100644
--- a/test/mjsunit/global-load-from-eval-in-with.js
+++ b/test/mjsunit/global-load-from-eval-in-with.js
@@ -56,4 +56,3 @@ test({ y: 42 }, "function f() { eval('1'); assertEquals(27, x) }; f();");
 // in the eval scopes.  Deeper nesting this time.
 test({ x: 42 }, "function f() { function g() { eval('1'); assertEquals(42, x) }; g() }; f();");
 test({ y: 42 }, "function f() { function g() { eval('1'); assertEquals(27, x) }; g() }; f();");
-