[polly] [polly] python futurize --stage1 --write (PR #124580)

[Michael Kruse via llvm-commits]

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@@ -4,6 +4,7 @@
 # Polly/LLVM update_check.py
 # Update lit FileCheck files by replacing the 'CHECK:' lines by the actual output of the 'RUN:' command.
 
+from __future__ import print_function
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Meinersbur wrote:

This file is already Python3. No `import __future__` needed

https://github.com/llvm/llvm-project/pull/124580