gh-101178: Fix UB in `binascii.b2a_ascii85` by StanFromIreland · Pull Request #148166 · python/cpython

$ ./python -m test test_binascii
Using random seed: 2254522381
0:00:00 load avg: 0.43 Run 1 test sequentially in a single process
0:00:00 load avg: 0.43 [1/1] test_binascii
Modules/binascii.c:1243:42: runtime error: left shift of 129 by 24 places cannot be represented in type 'int'
Modules/binascii.c:1484:42: runtime error: left shift of 130 by 24 places cannot be represented in type 'int'
0:00:00 load avg: 0.43 [1/1] test_binascii passed

== Tests result: SUCCESS ==

1 test OK.

Total duration: 89 ms
Total tests: run=197 skipped=17
Total test files: run=1/1
Result: SUCCESS