yaml loading error: display relative path

dvc/exceptions.py

@@ -212,6 +212,7 @@ class NoMetricsError(DvcException):
 
 class StageFileCorruptedError(DvcException):
     def __init__(self, path):
+        path = os.path.relpath(path)
         super(StageFileCorruptedError, self).__init__(
             "unable to read stage file: {} "
             "YAML file structure is corrupted".format(path)

tests/test_add.py

@@ -415,7 +415,7 @@ class TestShouldThrowProperExceptionOnCorruptedStageFile(TestDvc):
             ret = main(["add", self.FOO])
             self.assertEqual(0, ret)
 
-            foo_stage = os.path.abspath(self.FOO + Stage.STAGE_FILE_SUFFIX)
+            foo_stage = os.path.relpath(self.FOO + Stage.STAGE_FILE_SUFFIX)
 
             # corrupt stage file
             with open(foo_stage, "a+") as file: