Roll gsutil version to 4.15.

tools/telemetry/third_party/gsutilz/third_party/boto/tests/mturk/hit_persistence.py

Index: tools/telemetry/third_party/gsutilz/third_party/boto/tests/mturk/hit_persistence.py
diff --git a/tools/telemetry/third_party/gsutilz/third_party/boto/tests/mturk/hit_persistence.py b/tools/telemetry/third_party/gsutilz/third_party/boto/tests/mturk/hit_persistence.py
index 69918567bbf6ef57e2ab23759bd952f1b86260f6..04ebd0c25b01b8745f2be3bb1c6141ea073418c0 100644
--- a/tools/telemetry/third_party/gsutilz/third_party/boto/tests/mturk/hit_persistence.py
+++ b/tools/telemetry/third_party/gsutilz/third_party/boto/tests/mturk/hit_persistence.py
@@ -1,27 +1,27 @@
-import unittest
-import pickle
-
-from common import MTurkCommon
-
-class TestHITPersistence(MTurkCommon):
-	def create_hit_result(self):
-		return self.conn.create_hit(
-			question=self.get_question(), **self.get_hit_params()
-			)
-
-	def test_pickle_hit_result(self):
-		result = self.create_hit_result()
-		new_result = pickle.loads(pickle.dumps(result))
-
-	def test_pickle_deserialized_version(self):
-		"""
-		It seems the technique used to store and reload the object must
-		result in an equivalent object, or subsequent pickles may fail.
-		This tests a double-pickle to elicit that error.
-		"""
-		result = self.create_hit_result()
-		new_result = pickle.loads(pickle.dumps(result))
-		pickle.dumps(new_result)
-
-if __name__ == '__main__':
-	unittest.main()
+import unittest
+import pickle
+
+from common import MTurkCommon
+
+class TestHITPersistence(MTurkCommon):
+	def create_hit_result(self):
+		return self.conn.create_hit(
+			question=self.get_question(), **self.get_hit_params()
+			)
+
+	def test_pickle_hit_result(self):
+		result = self.create_hit_result()
+		new_result = pickle.loads(pickle.dumps(result))
+
+	def test_pickle_deserialized_version(self):
+		"""
+		It seems the technique used to store and reload the object must
+		result in an equivalent object, or subsequent pickles may fail.
+		This tests a double-pickle to elicit that error.
+		"""
+		result = self.create_hit_result()
+		new_result = pickle.loads(pickle.dumps(result))
+		pickle.dumps(new_result)
+
+if __name__ == '__main__':
+	unittest.main()