Update expected results

Author: kahgoh

tests/example-empty-file/expected_results.json

@@ -1,6 +1,6 @@
 {
   "version": 3,
   "status": "error",
-  "message": "File \"leap.ml\", line 1:\nError: The implementation leap.ml\n       does not match the interface .test.eobjs/byte/leap.cmi: \n       The value `leap_year' is required but not provided\n       File \"leap.mli\", line 1, characters 0-26: Expected declaration\nmake: *** [Makefile:4: test] Error 1",
+  "message": "File \"leap.ml\", line 1:\nError: The implementation leap.ml does not match the interface leap.mli: \n       The value leap_year is required but not provided\n       File \"leap.mli\", line 1, characters 0-26: Expected declaration\nmake: *** [Makefile:4: test] Error 1",
   "tests": null
 }