tests/basics/builtin_range: PEP8 fixes.

tests/basics/builtin_range.py

@@ -28,11 +28,11 @@ print(range(4)[1:2])
 print(range(4)[1:3])
 print(range(4)[1::2])
 print(range(4)[1:-2:2])
-print(range(1,4)[:])
-print(range(1,4)[0:])
-print(range(1,4)[1:])
-print(range(1,4)[:-1])
-print(range(7,-2,-4)[:])
+print(range(1, 4)[:])
+print(range(1, 4)[0:])
+print(range(1, 4)[1:])
+print(range(1, 4)[:-1])
+print(range(7, -2, -4)[:])
 
 # attrs
 print(range(1, 2, 3).start)