Revert more format test

Author: aisk

Lib/test/test_array.py

@@ -1431,6 +1431,7 @@ def test_bytes_extend(self):
             array.array(self.typecode, self.example+self.example[::-1])
         )
 
+
 class ByteTest(SignedNumberTest, unittest.TestCase):
     typecode = 'b'
     minitemsize = 1
@@ -1531,6 +1532,7 @@ def test_alloc_overflow(self):
         else:
             self.fail("Array of size > maxsize created - MemoryError expected")
 
+
 class LargeArrayTest(unittest.TestCase):
     typecode = 'b'