[Rpm-maint] [rpm-software-management/rpm] Fix possible descriptor leak in fsmOpenat (PR #2175)

[Dmitry Antipov]

For the very unlikely case when `openat()` succeeded but `fstatat()`
doesn't, the directory descriptor may be leaved opened. So add `fsmClose()`
as an extra precaution for this particular case.

Suggested-by: Pavel Kopylov <pkopylov at cloudlinux.com>
Signed-off-by: Dmitry Antipov <dantipov at cloudlinux.com>
You can view, comment on, or merge this pull request online at:

  https://github.com/rpm-software-management/rpm/pull/2175

-- Commit Summary --

  * Fix possible descriptor leak in fsmOpenat

-- File Changes --

    M lib/fsm.c (2)

-- Patch Links --

https://github.com/rpm-software-management/rpm/pull/2175.patch
https://github.com/rpm-software-management/rpm/pull/2175.diff

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