[RFC v6 01/23] math/gen-libm-test.py: Convert to Python 3

[Alistair Francis]

Convert to explicity use Python 3. This was tested by using the script
(with Python 3) to generate the RV32 libm-test-ulps.
---
 math/gen-libm-test.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/math/gen-libm-test.py b/math/gen-libm-test.py
index ec263397d8..0142c0f332 100755
--- a/math/gen-libm-test.py
+++ b/math/gen-libm-test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 # Generate tests for libm functions.
 # Copyright (C) 2018-2020 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
-- 
2.24.1