view mercurial/pure/__init__.py @ 48488:f8540fe4be0f

procutil: avoid an uninitialized variable usage on tempfile exception

If `pycompat.unnamedtempfile()` raises an exception, it would have called
`stdin.close()` in the `finally` block without it being initialized first.

Differential Revision: https://phab.mercurial-scm.org/D11928