libziparchive: write failures are errors, not warnings. am: 18ac0e91b5

Original change: https://android-review.googlesource.com/c/platform/system/libziparchive/+/2940667

Change-Id: Ie866b2bbe2778c3eb334d109b92ee8e92ea35909
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>